{"title":"4L80E Torque Converters","description":null,"products":[{"product_id":"4l80e-4l85e-ls-out-law-35-4-200-rpm-lock-up-gm-racing-torque-converter-part-number-gm-49705","title":"4L80E 4L85E LS Out Law 35-4,200 RPM Lock Up GM Racing Torque Converter Part Number  GM 49705","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eGM Chevy LS Outlaw Racing Torque Converter - Part #49705\u003c\/h2\u003e \u003cp\u003eElevate your LS engine's performance with our SUPER Lightweight Outlaw Racing Series Torque Converter. Designed specifically for robust performance applications, this heavy-duty converter is engineered to handle the extreme demands of choppily cammed builds, nitrous boosts, and high-performance transmissions. Our commitment to quality ensures reliability under intense pressure, making it the perfect match for high-horsepower builds and dedicated racing applications.\u003c\/p\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTransmission Compatibility:\u003c\/strong\u003e 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Outlaw Racing Series (Ideal for LS Engines)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 49705\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStall Range:\u003c\/strong\u003e 3,500 - 4,200 RPM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 35 Spline Input Shaft (Fits 2-step input shafts)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCore Diameter:\u003c\/strong\u003e 9.6 inch Pump \u0026amp; Turbine Fins\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Circle Diameter:\u003c\/strong\u003e Factory 11.675 inch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePilot Diameter:\u003c\/strong\u003e 1.703 inch Crank Pilot\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConstruction Details:\u003c\/strong\u003e Hardened Chrome Molly Impeller Hub, Torrington Style Incased Bearings, Extreme Temp Heavy Duty O-Ring\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance Features:\u003c\/strong\u003e Extreme Duty Single Disk Lock Up, Anti-Balloon Plates included, Fully Welded\/Furnace-Brazed Pump \u0026amp; Turbine Fins\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuality Assurance:\u003c\/strong\u003e Digitally Balanced, Leak \u0026amp; Pressure Tested, Whole Back Cover Quenched and Hardened\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Size:\u003c\/strong\u003e 10mm X 1.5 Pitch (Class 10.9 or Stronger hardware recommended)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eApplication Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAll advertised stall ranges are based on specific vehicle setups and may vary depending on your application.\u003c\/li\u003e \u003cli\u003eFor optimal performance, consulting our experts regarding your specific setup is recommended. Contact us at 888-267-7464.\u003c\/li\u003e \u003cli\u003eOur converters are exceptional performers with Nitrous, Turbochargers, Superchargers, and Trans-Breaks.\u003c\/li\u003e \u003cli\u003eThese converters are ideally suited for aggressive shifts and high-performance driving styles.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003ePro Builder Advice\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFor the best shifting results and longevity, use TYPE F transmission fluid.\u003c\/li\u003e \u003cli\u003eAlways pair this converter with a dedicated transmission cooler for maximum thermal management during hard use.\u003c\/li\u003e \u003cli\u003eUse Blue Loctite on all fitting hardware to ensure secure installation and prevent leaks.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eProudly MADE IN THE USA, we have been building high-performance and racing torque converters since 1970. Trust a family-owned company dedicated to uncompromising quality in every detail.\u003c\/p\u003e \u003cp style=\"font-size: small; color: #666;\"\u003e*Warning: Cancer and Reproductive Harm – visit www.P65warning.ca.gov for information.\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064181715190,"sku":"49705","price":1212.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49702b-scaled-1.png?v=1793210063"},{"product_id":"4l80e-4l85e-ls-out-law-32-3-500-rpm-lock-up-gm-racing-torque-converter-part-number-49704","title":"4L80E 4L85E LS Out Law 32-3,500 RPM Lock Up GM Racing Torque Converter Part Number 49704","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eOut Law Racing Series Torque Converter - GM Chevy LS Application (Part #49704)\u003c\/h2\u003e \u003cp\u003eUnlock extreme performance potential with our Out Law Racing Series Torque Converter, specifically matched for GM Chevy LS applications. Engineered for high-performance racing, this durable unit is designed to handle the stresses of chopped cams, nitrous boosts, and aggressive drag setups while providing optimal shifting characteristics and reliability.\u003c\/p\u003e \u003cp\u003eThis SUPER Lightweight Converter is built to withstand extreme temperature ranges and demanding usage, making it the perfect pairing for your high-power powertrain. Our rigorous manufacturing process ensures that every component meets uncompromising standards of quality and durability.\u003c\/p\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTransmission\/Engine Application: GM Chevy LS Engines (4L80E \/ 4L85E)\u003c\/li\u003e \u003cli\u003ePart Number: 49704\u003c\/li\u003e \u003cli\u003eSeries: Out Law Racing Series\u003c\/li\u003e \u003cli\u003eStall Range: 3,200 – 3,500 RPM\u003c\/li\u003e \u003cli\u003eCore Diameter: 9.6 inch\u003c\/li\u003e \u003cli\u003eBolt Circle Diameter: Factory 11.675 inch\u003c\/li\u003e \u003cli\u003eInput Shaft Splines: 35 Tooth\u003c\/li\u003e \u003cli\u003eCrank Pilot Diameter: 1.703 inch\u003c\/li\u003e \u003cli\u003eLockup Type: Extreme Duty Single Disk Lock Up\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAdvanced Construction \u0026amp; Performance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eImpeller Hub: Hardened Chrome Molly Impeller Hub\u003c\/li\u003e \u003cli\u003eInternal Components: Torrington Style Incased Bearings and Extreme Temp Heavy Duty O-ring\u003c\/li\u003e \u003cli\u003ePump \u0026amp; Turbine Assembly: ALL Fins are Welded or Furnace-Brazed for maximum integrity\u003c\/li\u003e \u003cli\u003eConstruction Detail: Whole Back Cover is Quenched and Hardened\u003c\/li\u003e \u003cli\u003eQuality Assurance: Digitally Balanced, Leak \u0026amp; Pressure Tested, includes Anti-Balloon Plates\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Class 10.9 or Stronger)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation and Setup Guidance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFor optimal performance, use TYPE F transmission fluid.\u003c\/li\u003e \u003cli\u003eAlways install an additional Transmission Cooler to manage extreme heat buildup.\u003c\/li\u003e \u003cli\u003eSecure all fasteners using Blue Loctite for maximum reliability during high-speed operation.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Considerations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAdvertised stall ranges are based on specific vehicle setups and may vary depending on your application. Contact us for detailed information.\u003c\/li\u003e \u003cli\u003eMost vehicles may require additional gearing, especially when running taller tires, to achieve ideal acceleration.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuilding high performance and racing converters since 1970! We are a veteran, family-owned operation committed to your success. For personalized consultation or to discuss our No Prep Series Converters, please contact us directly at 888-267-7464.\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064182075638,"sku":"49704","price":1173.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/Spray-Welding_4cdfb588-c19d-4e20-98e8-de7c4642e215.png?v=1793210067"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-stock-replacement-no-stall-added-lock-up-gm-torque-converter-part-number-49480","title":"4L80E 4L85E LS Night Stalker Series Stock Replacement No Stall Added Lock Up GM Torque Converter Part Number 49480","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter - GM Chevy LS 4L80E\/4L85E\u003c\/h2\u003e \u003cp\u003eOptimize your drivetrain with this high-performance, heavy-duty torque converter. Designed for the GM Chevy LS application, this Night Stalker Series unit provides a reliable stock replacement performance while maintaining exceptional durability under extreme conditions. Manufactured with quality inspections at every step, this torque converter ensures leak-free pressure and flawless operation in your setup.\u003c\/p\u003e \u003ch3\u003eKey Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Chevy LS 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e [Insert Specific Part Number Here - if available, otherwise leave placeholder]\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Night Stalker Series\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStall Range:\u003c\/strong\u003e 1,400 - 1,600 RPM (Stock Replacement \/ No Stall Added)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eImpeller Hub:\u003c\/strong\u003e 2-inch Impeller Hub\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCore Size:\u003c\/strong\u003e Factory 13 inch Core Size\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Circle:\u003c\/strong\u003e Factory 11.675 inch Bolt Circle\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Shaft Details:\u003c\/strong\u003e 35 Spline Input Shaft, for 2-step input shaft\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Modified Extreme Duty Stator, Hardened Chrome Molly Impeller Hub\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFluid Capacity:\u003c\/strong\u003e Extreme Temp Heavy Duty O-ring\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLock Up:\u003c\/strong\u003e Oversized Extreme Duty Single Disk Lock Up\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCrank Pilot Diameter:\u003c\/strong\u003e 1.703 inch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Size:\u003c\/strong\u003e 10mm X 1.5 Pitch (Class 10.9 or Stronger)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAdditives:\u003c\/strong\u003e No Anti-Balloon Plates\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuild Quality:\u003c\/strong\u003e Digitally Balanced, 4 Corner tac Welded Fins or Furnace Brazed\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; Performance Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAll advertised stall ranges are based on a specific vehicle's setup and may vary depending on your application. Please contact us for installation advice.\u003c\/li\u003e \u003cli\u003eFor the best operational results, use Type F Transmission Fluid.\u003c\/li\u003e \u003cli\u003eAlways install an additional transmission cooler to maintain optimal operating temperature.\u003c\/li\u003e \u003cli\u003eUse Blue Loctite when assembling the unit for maximum security.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Considerations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMost vehicles operating with taller tires or needing more power may require an upgraded differential gear set to match the torque converter's output.\u003c\/li\u003e \u003cli\u003eIf you have upgraded intake, headers, exhaust, or cam, we recommend upgrading to a \"Street Bandit Series\" torque converter.\u003c\/li\u003e \u003cli\u003eFor applications involving power adders such as Nitrous Oxide (NOS), Turbochargers, or Superchargers, we recommend the \"Out Law Series\" torque converter.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eExperience unmatched quality from a family-owned and operated company that has been building high-performance torque converters since 1970. We stand behind our products with meticulous quality inspections and pressure testing on every unit shipped.\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064183419126,"sku":"49480","price":402.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49481b-scaled-1.png?v=1793210080"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-16-2-200-rpm-lock-up-gm-torque-converter-part-number-49481","title":"4L80E 4L85E LS Night Stalker Series 16-2,200 RPM Lock Up GM Torque Converter Part Number 49481","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter - GM LS 4L80E \/ 4L85E\u003c\/h2\u003e \u003cp\u003eEngineered for demanding LS applications, this Night Stalker Series torque converter is designed to provide reliable, powerful engagement and durability under extreme conditions. Built with high-quality materials and meticulously tested, this torque converter is the perfect match for enthusiasts seeking optimal performance from their GM Chevy LS setup.\u003c\/p\u003e \u003cp\u003eThis unit is manufactured with superior components, ensuring a robust match to your drivetrain and providing the necessary durability for performance builds.\u003c\/p\u003e \u003ch3\u003eProduct Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTransmission Application: GM Chevy LS 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003eSeries: Night Stalker Series\u003c\/li\u003e \u003cli\u003ePart Number: 49481\u003c\/li\u003e \u003cli\u003eStall Range: 1,600 - 2,200 RPM\u003c\/li\u003e \u003cli\u003eImpeller Hub: Hardened Chrome Molly, 2 inch diameter\u003c\/li\u003e \u003cli\u003eInput Shaft: 35 Spline (for 2 step input shaft)\u003c\/li\u003e \u003cli\u003eCore Size: Factory 13 inch\u003c\/li\u003e \u003cli\u003eBolt Circle Diameter (BCD): Factory 11.675 inch\u003c\/li\u003e \u003cli\u003eKey Features: Modified Extreme Duty Stator, Torrington Style Incased Bearings, Oversized Extreme Duty Single Disk Lock Up\u003c\/li\u003e \u003cli\u003eConstruction: Digitally Balanced, 4 Corner Tac Welded Fins or Furnace Brazed\u003c\/li\u003e \u003cli\u003ePilot Diameter: 1.703 inch Crank Pilot\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Class 10.9 or Stronger)\u003c\/li\u003e \u003cli\u003eQuality Assurance: Leak \u0026amp; Pressure Tested, Extreme Temp Heavy Duty O-ring\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eApplication Details\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for: LS Engines \u003c\/li\u003e\n\u003cli\u003eHub Compatibility: Fits with 2 inch Impeller Hub (refer to accompanying picture)\u003c\/li\u003e \u003cli\u003eBolt Circle: Factory 11.675 inch Bolt Circle matches most factory setups\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; Performance Considerations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eUse Type F transmission fluid for optimal performance.\u003c\/li\u003e \u003cli\u003eAlways use an additional Transmission Cooler when installing this torque converter.\u003c\/li\u003e \u003cli\u003eApply Blue Loctite during installation for secure assembly.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eStated stall ranges are based on a specific vehicle setup; actual performance will vary depending on your installation.\u003c\/li\u003e \u003cli\u003eFor high-performance builds involving intake upgrades, headers, exhaust, cam, or gearing, we recommend upgrading to a \"Street Bandit Series\" torque converter.\u003c\/li\u003e \u003cli\u003eFor setups including power adders (Nitrous, Turbocharger(s), Supercharger, or Trans Brake), we recommend upgrading to an \"Out Law Series\" torque converter.\u003c\/li\u003e \u003cli\u003eFor detailed installation questions or advice, please contact us at 888-267-7464.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVeteran \u0026amp; Family owned company building high performance converters since 1970. Made in the USA.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064184860918,"sku":"49481","price":402.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49481b-scaled-1_8f5fce09-4536-40da-a7e3-363fd3821a17.png?v=1793210093"},{"product_id":"4l80e-4l85e-ls-out-law-42-5-000-rpm-lock-up-gm-racing-torque-converter-part-number-49706","title":"4L80E 4L85E LS Out Law 42-5,000 RPM Lock Up GM Racing Torque Converter Part Number 49706","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eOutlaw Racing Series Torque Converter - GM Chevy LS (4L80E\/4L85E)\u003c\/h2\u003e \u003cp\u003eElevate your drivetrain with our Outlaw Racing Series Torque Converter, engineered specifically for high-performance LS applications. Designed to handle extreme duty cycles, this Super Light Converter is the perfect match for chopped cams, nitrous setups, and demanding racing builds where reliable performance under pressure is non-negotiable. Built with premium components and precision manufacturing, this unit provides unmatched durability for serious enthusiasts.\u003c\/p\u003e \u003ch3\u003eProduct Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTransmission Compatibility:\u003c\/strong\u003e GM Chevy LS, 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 49706\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Outlaw Racing Series - Super Light Duty\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStall Range:\u003c\/strong\u003e 4,200 – 5,000 RPM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 35 Spline Input Shaft (Fits 2-Step Applications)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCore Size:\u003c\/strong\u003e 9.6 inch Core with Factory 11.675 inch Bolt Circle\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCrank Pilot:\u003c\/strong\u003e 1.703 inch Crank Pilot\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eImpeller Hub:\u003c\/strong\u003e Hardened Chrome Molly Impeller Hub\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAdvanced Build Quality \u0026amp; Construction\u003c\/h3\u003e \u003cp\u003eThis torque converter is built to withstand the harshest conditions. It features a robust construction including Torrington Style Incased Bearings, an Extreme Temperature Heavy Duty O-Ring, and an Extreme Duty Single Disk Lock Up for seamless power transfer. Critical elements like the whole back cover are quenched and hardened, while pump and turbine fins are fully welded or furnace-brazed for maximum integrity. Digitally balanced, leak and pressure tested, and ready for serious power applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAnti-Balloon Plates included\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Requires Class 10.9 or stronger hardware)\u003c\/li\u003e \u003cli\u003eWelded\/Furnace-Brazed Pump \u0026amp; Turbine Fins\u003c\/li\u003e \u003cli\u003eExtreme Duty Components for High-Stress Environments\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003ePerformance Application Tips\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFor optimal performance, use TYPE F transmission fluid.\u003c\/li\u003e \u003cli\u003eAlways utilize a Transmission Cooler when operating this converter.\u003c\/li\u003e \u003cli\u003eUse Blue Loctite on all fasteners to ensure secure, vibration-free assembly.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; Operational Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAll advertised stall ranges are dependent on the specific vehicle's setup and application.\u003c\/li\u003e \u003cli\u003eWarning: Vehicles with tall tires or extreme gearing may require additional gear ratio changes to achieve ideal performance.\u003c\/li\u003e \u003cli\u003eFor installation advice or specific application details, please contact us at 888-267-7464.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cem\u003eBuilding High Performance \u0026amp; Racing Converters Since 1970! Veteran \u0026amp; Family owned and Run company.\u003c\/em\u003e\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064192790774,"sku":"49706","price":1233.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49702b-scaled-1_927f6fc9-2a55-4ed4-af2a-c8d31a44f6a5.png?v=1793210131"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-22-2-800-rpm-lock-up-gm-torque-converter-part-number-49482","title":"4L80E 4L85E LS Night Stalker Series 22-2,800 RPM Lock Up GM Torque Converter Part Number 49482","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter – Fits GM Chevy LS (4L80E \/ 4L85E)\u003c\/h2\u003e \u003cp\u003eElevate your performance with our premium Night Stalker Series Torque Converter, engineered specifically for GM Chevy LS applications. Built to withstand extreme conditions and matched perfectly to the 2-step input shaft, this torque converter provides reliable power transfer while maintaining smooth operation. Manufactured in the USA and quality-inspected at every stage, this unit is ready to handle your aggressive driving demands.\u003c\/p\u003e \u003ch3\u003eProduct Details \u0026amp; Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eApplication Fitment:\u003c\/strong\u003e GM Chevy LS, 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Night Stalker Series\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 49482\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStall Range:\u003c\/strong\u003e 2,200 - 2,800 RPM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eImpeller Hub:\u003c\/strong\u003e Hardened Chrome Molly with 2-inch hub\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 35 Spline, designed for 2-step input shaft\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCore Size \/ Bolt Circle:\u003c\/strong\u003e Factory 13 inch Core Size \/ 11.675 inch Bolt Circle\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Modified Extreme Duty Stator, Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlushing\/Sealing:\u003c\/strong\u003e Extreme Temp Heavy Duty O-ring, Oversized Single Disk Lock Up\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePilot\/Bolting:\u003c\/strong\u003e 1.703 inch Crank Pilot, Accommodates Class 10.9 or stronger bolts (10mm X 1.5 Pitch)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuild Quality:\u003c\/strong\u003e Leak \u0026amp; Pressure Tested, Digitally Balanced, 4 Corner Tac Welded Fins or Furnace Brazed\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesign Enhancements:\u003c\/strong\u003e No Anti-Balloon Plates, Extreme Duty components\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; Performance Guidance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eUse Type F transmission fluid for optimal operational results.\u003c\/li\u003e \u003cli\u003eAlways utilize an additional transmission cooler system to manage heat efficiently.\u003c\/li\u003e \u003cli\u003eApply Blue Loctite during assembly for maximum joint stability.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAdvertised stall ranges are based on specific vehicle setups and will vary depending on your vehicle's overall setup. Please contact us for detailed compatibility information.\u003c\/li\u003e \u003cli\u003eMost vehicles may require additional gearing, especially when fitted with taller tires.\u003c\/li\u003e \u003cli\u003eContact us regarding high-performance upgrades or if you require information on our \"Street Bandit Series\" or \"Out Law Series\" converters for applications involving Nitrous Oxide, Turbochargers, or Superchargers.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cem\u003eBuilding High Performance \u0026amp; Racing Converters Since 1970! We are a Veteran and Family-owned business committed to quality craftsmanship.\u003c\/em\u003e\u003c\/p\u003e \u003csmall style=\"font-size: 0.8em;\"\u003eWarning: Cancer and Reproductive Harm - www.P65warning.ca.gov\u003c\/small\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064197017846,"sku":"49482","price":498.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49481b-scaled-1_ea0ec2d4-d45d-4a41-bc14-58182dee2655.png?v=1793210143"},{"product_id":"4l80e-4l85e-ls-night-stalker-200-rpm-over-stock-lock-up-gm-towing-torque-converter-part-number-4948hd","title":"4L80E 4L85E LS Night Stalker 200 RPM Over Stock Lock Up GM Towing Torque Converter Part Number 4948HD","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter - GM Chevy LS 4L80E\/4L85E\u003c\/h2\u003e \u003cp\u003eAchieve maximum performance and reliability with our Night Stalker Series torque converter, engineered specifically for GM Chevy LS applications. This heavy-duty unit is designed to handle high loads while maintaining a precise stall range, making it the perfect match for your upgraded drivetrain. Built in-house and rigorously tested, this converter ensures seamless power transfer from engine to transmission.\u003c\/p\u003e \u003cp\u003eOur commitment to quality is reflected in every component, from the hardened chrome impeller hub to the digitally balanced assembly. Don't settle for less—install a proven, high-performance torque converter built to withstand extreme conditions and deliver peak power delivery when you need it most.\u003c\/p\u003e \u003ch3\u003eProduct Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSeries: Night Stalker Series\u003c\/li\u003e \u003cli\u003eApplication: GM Chevy LS Engines (For 2 step input shaft)\u003c\/li\u003e \u003cli\u003ePart Number: 4948HD (See images for visual confirmation)\u003c\/li\u003e \u003cli\u003eStall Range: 200 - 300 RPM (Over stock)\u003c\/li\u003e \u003cli\u003eImpeller Hub: Hardened Chrome Molly, 2 inch Diameter (See pictures)\u003c\/li\u003e \u003cli\u003eCore Size: Factory 13 inches\u003c\/li\u003e \u003cli\u003eBolt Circle Diameter: Factory 11.675 inches\u003c\/li\u003e \u003cli\u003eInput Shaft: 35 Spline Input Shaft for 2-step compatibility\u003c\/li\u003e \u003cli\u003eStator: Modified Extreme Duty Stator\u003c\/li\u003e \u003cli\u003eBearings: Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003eLockup Clutch: Oversized Extreme Duty Single Disk Lock Up\u003c\/li\u003e \u003cli\u003eCrank Pilot Diameter: 1.703 inch\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Class 10.9 or Stronger)\u003c\/li\u003e \u003cli\u003eConstruction: Anti-Balloon Plates, Digitally Balanced, 4 Corner Tac Welded\/Furnace Brazed Fins\u003c\/li\u003e \u003cli\u003eTesting: Leak \u0026amp; Pressure Tested, Extreme Temp Heavy Duty O-ring Seal\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation and Performance Guidance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eUse Type F Transmission Fluid for optimal operational performance.\u003c\/li\u003e \u003cli\u003eAlways utilize a transmission cooler to maintain fluid integrity under extreme use.\u003c\/li\u003e \u003cli\u003eApply Blue Loctite during installation for maximum security.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Considerations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAdvertised stall ranges are based on a specific vehicle setup; actual performance will vary depending on your vehicle's configuration.\u003c\/li\u003e \u003cli\u003eVehicles with taller tires or significant gear ratio changes may require additional gearing adjustment for ideal match.\u003c\/li\u003e \u003cli\u003eFor maximum performance potential, consider upgrading to a \"Street Bandit Series\" if you have also upgraded your intake, headers, exhaust, or gearing.\u003c\/li\u003e \u003cli\u003eIf utilizing power adders such as Nitrous Oxide (NOS), Turbocharger(s), or Supercharger, we recommend pairing this with an \"Out Law Series\" torque converter.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eOur company has been building high-performance and racing converters since 1970. We are a veteran and family-owned operation dedicated to quality assurance at every stage.\u003c\/p\u003e \u003cp class=\"legal-notice\"\u003eWARNING: Cancer and Reproductive Harm - www.P65warning.ca.gov\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064197476598,"sku":"4948HD","price":402.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49481b-scaled-1_227aa63f-2583-4e3b-b284-d92dbf2a69cf.png?v=1793210143"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-22-2-800-rpm-lock-up-gm-torque-converter-part-number-49492","title":"4L80E 4L85E LS Night Stalker Series 22-2,800 RPM Lock Up GM Torque Converter Part Number 49492","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter - Fits GM Chevy LS 4L80E\/4L85E (Part #49492)\u003c\/h2\u003e \u003cp\u003eEnsure flawless power transfer and maximum reliability for your high-performance drivetrain with this extreme-duty Night Stalker Series Torque Converter. Designed specifically for LS Engines, this unit is engineered to handle the rigors of demanding driving conditions while maintaining superior match and response. If your build demands precision, quality, and uncompromising performance, this is the pairing you need.\u003c\/p\u003e \u003ch3\u003eProduct Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Night Stalker Series\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM Chevy LS Engines (Suitable for 2-step input shaft)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 49492\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStall Range:\u003c\/strong\u003e 2,200 – 2,800 RPM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCore Size:\u003c\/strong\u003e Factory 13 inch Core Size\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Circle Diameter:\u003c\/strong\u003e Factory 11.675 inch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCrank Pilot Diameter:\u003c\/strong\u003e 1.703 inch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 35 Spline Input Shaft\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Size\/Pitch:\u003c\/strong\u003e 10mm X 1.5 Pitch (Class 10.9 or Stronger hardware recommended)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eExtreme Duty Construction \u0026amp; Quality\u003c\/h3\u003e \u003cp\u003eBuilt with military-grade components, this torque converter is designed for longevity and consistent performance under extreme load. Our manufacturing process ensures that every unit performs at its peak potential.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eModified Extreme Duty Stator for optimal performance.\u003c\/li\u003e \u003cli\u003eHardened Chrome Molly Impeller Hub provides durability and stability.\u003c\/li\u003e \u003cli\u003eTorrington Style Incased Bearings provide smooth, long-lasting operation.\u003c\/li\u003e \u003cli\u003eOversized Extreme Duty Single Disk Lock Up provides robust engagement.\u003c\/li\u003e \u003cli\u003eExtreme Temp Heavy Duty O-ring gasketry maintains seal integrity.\u003c\/li\u003e \u003cli\u003eProtected by a 35 Spline Input Shaft and features no anti-balloon plates.\u003c\/li\u003e \u003cli\u003eRigorous manufacturing includes quality inspections at every step, leak testing, pressure testing, and digital balancing.\u003c\/li\u003e \u003cli\u003eFurnace Brazed or Tac Welded fins ensure maximum heat dissipation efficiency.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation and Operational Notes\u003c\/h3\u003e \u003cp\u003eTo achieve the best results from your installation, please keep the following operational guidelines in mind:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUse Type F Transmission Fluid for optimal operation.\u003c\/li\u003e \u003cli\u003eAlways use an additional Transmission Cooler to manage heat buildup during performance driving.\u003c\/li\u003e \u003cli\u003eBlue Loctite recommended for securing fasteners.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Considerations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eStall range performance is highly dependent on the specific vehicle setup. Please contact us for individualized technical consultation.\u003c\/li\u003e \u003cli\u003eMost vehicles, especially those with taller tires or increased gearing, may require additional gear reduction to achieve ideal performance.\u003c\/li\u003e \u003cli\u003eIf you have upgraded intake, headers, exhaust, cam, or gearing, we recommend upgrading to our \"Street Bandit Series\" converter.\u003c\/li\u003e \u003cli\u003eFor builds featuring power adders (Nitrous, Turbocharger(s), Supercharger, or Trans Brake), the \"Out Law Series\" is recommended for ultimate durability.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eOur company has been building high-performance and racing converters since 1970. We are a veteran and family-owned business dedicated to quality.\u003c\/p\u003e \u003cp class=\"warning\"\u003eWarning: Cancer and Reproductive Harm - www.P65warning.ca.gov\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064197804278,"sku":"49492","price":498.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49490b-scaled-1.png?v=1793210146"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-200-rpm-over-stock-lock-up-gm-towing-torque-converter-part-number-4949hd","title":"4L80E 4L85E LS Night Stalker Series 200 RPM Over Stock Lock Up GM Towing Torque Converter Part Number 4949HD","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter for GM Chevy LS Engines\u003c\/h2\u003e \u003cp\u003eUpgrade your drivetrain with our premium Night Stalker Series Torque Converter, specifically engineered for the GM Chevy LS platforms. This unit offers exceptional durability and performance, matched with a 200-300 RPM stall range (depending on vehicle setup), ensuring reliable power transfer whether you're running street drives or performance builds. Constructed with extreme duty components, this converter is built to handle the rigorous demands of high-performance modern engines.\u003c\/p\u003e \u003ch3\u003eProduct Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Fits GM Chevy LS Engines (Factory 13-inch Core Size)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Night Stalker Series (High Performance\/Extreme Duty)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 4949HD (LS 4L80E \/ 4L85E Conversion)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStall Range:\u003c\/strong\u003e 200 - 300 RPM (Dependent on vehicle configuration)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eImpeller Hub:\u003c\/strong\u003e Hardened Chrome Molly, 2.5 inch Impeller Hub\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 35 Spline, optimized for the 2-step input shaft\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt Circle:\u003c\/strong\u003e Factory 11.675 inch (Supports 10mm X 1.5 Pitch bolts, Class 10.9 or stronger)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eKey Features:\u003c\/strong\u003e Modified Extreme Duty Stator, Oversized Extreme Duty Single Disk Lock Up, Anti-Balloon Plates, No-Leak\/Pressure Tested\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePilot Diameter:\u003c\/strong\u003e 1.703 inch Crank Pilot\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eCommitment to Quality\u003c\/h3\u003e \u003cp\u003eEvery torque converter undergoes rigorous quality inspections, including Leak \u0026amp; Pressure Testing and Digital Balancing. The construction features 4-Corner tac Welded Fins or Furnace Brazed connections, ensuring maximum strength and longevity.\u003c\/p\u003e \u003ch3\u003eApplication Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAll advertised stall ranges are based on a specific vehicle's setup and may vary depending on your particular application. Contact us for personalized recommendations regarding optimal stall speeds.\u003c\/li\u003e \u003cli\u003eFor best operational results, use Type F Transmission Fluid.\u003c\/li\u003e \u003cli\u003eAlways install an additional transmission cooler to maintain optimal operating temperatures and protect your components.\u003c\/li\u003e \u003cli\u003eApply Blue Loctite during assembly for maximum security of hardware.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003ePerformance Recommendations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIf you have upgraded intake, headers, exhaust, or cam profiles, we recommend upgrading to our \"Street Bandit Series\" torque converter for a balanced fit.\u003c\/li\u003e \u003cli\u003eIf your application includes power adders (Nitrous, Turbocharger, Supercharger, or Trans Brake), consult our \"Out Law Series\" converters for maximum performance capacity.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eBuilt Since 1970:\u003c\/strong\u003e Our company has been building high-performance and racing converters for generations. We are a Veteran \u0026amp; Family Owned business dedicated to quality manufacturing in the USA.\u003c\/p\u003e \u003cp class=\"safety-warning\"\u003e\u003cstrong\u003eImportant Safety Notice:\u003c\/strong\u003e Please be aware that certain vehicles may require additional gearing, especially when running taller tires. Also note the warning regarding P65 exposure (Cancer and Reproductive Harm).\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064198131958,"sku":"4949HD","price":402.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49490b-scaled-1_be8f0032-5190-4ce8-a8b2-980fe849f6cc.png?v=1793210147"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-16-2-200-rpm-lock-up-gm-torque-converter-part-number-49491","title":"4L80E 4L85E LS Night Stalker Series 16-2,200 RPM Lock Up GM Torque Converter Part Number 49491","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eNight Stalker Series Torque Converter - Fits GM Chevy LS 4L80E\/4L85E\u003c\/h2\u003e \u003cp\u003eAchieve peak performance and reliable shifting with our Night Stalker Series Torque Converter, specifically engineered for GM Chevy LS applications. This high-performance unit is designed to match factory specifications while offering extreme duty components necessary for modern muscle car builds. Restoring or upgrading your drivetrain with this digitally balanced, leak-and pressure tested unit ensures unmatched dependability and driveability.\u003c\/p\u003e \u003cp\u003eOur commitment to quality is evident in every detail, from the furnace brazed fins to the high-quality components used throughout. Trust our veteran and family-owned company, building performance since 1970, to deliver a converter built for the road or the race track.\u003c\/p\u003e \u003ch3\u003eProduct Specifications \u0026amp; Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTransmission Application: GM Chevy LS (4L80E\/4L85E)\u003c\/li\u003e \u003cli\u003eSeries: Night Stalker Series\u003c\/li\u003e \u003cli\u003ePart Number: 49491\u003c\/li\u003e \u003cli\u003eStall Range: 1,600 – 2,200 RPM\u003c\/li\u003e \u003cli\u003eImpeller Hub: 2.5 inch Diameter (See accompanying diagram)\u003c\/li\u003e \u003cli\u003eCore Size: Factory 13 inch\u003c\/li\u003e \u003cli\u003eBolt Circle Diameter: Factory 11.675 inch\u003c\/li\u003e \u003cli\u003eInput Shaft: 35 Spline\u003c\/li\u003e \u003cli\u003eTorque Converter Components: Modified Extreme Duty Stator, Hardened Chrome Molly Impeller Hub, Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003eConstruction: Oversized Extreme Duty Single Disk Lock Up, Tailored with Anti-Balloon Plates\u003c\/li\u003e \u003cli\u003ePilot Diameter: 1.703 inch Crank Pilot\u003c\/li\u003e \u003cli\u003eBolt Size Compatibility: 10mm X 1.5 Pitch (Requires Class 10.9 or stronger bolts)\u003c\/li\u003e \u003cli\u003eQuality Assurance: Digitally Balanced, Leak \u0026amp; Pressure Tested, Quality Inspections at Every Step\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation and Performance Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eStall ranges advertised are specific to a vehicle's unique setup; actual performance may vary. Please contact us for personalized installation advice regarding your specific vehicle configuration.\u003c\/li\u003e \u003cli\u003eThis application may require additional gearing, especially when fitted with taller tires, to achieve optimal performance and durability.\u003c\/li\u003e \u003cli\u003eFor best operational results and extended life of this unit, use Type F Transmission Fluid.\u003c\/li\u003e \u003cli\u003eWe recommend pairing this torque converter with a transmission cooler to manage heat and maintain peak performance during aggressive driving.\u003c\/li\u003e \u003cli\u003eEnsure all fasteners are secured using Blue Loctite for maximum vibration resistance.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eUpgrade Recommendations\u003c\/h3\u003e \u003cp\u003eWhile the Night Stalker is built to last, consider pairing it with our specialized series if you have upgraded components:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eStreet Bandit Series:\u003c\/strong\u003e Recommended if you have upgraded intake, headers, exhaust, or gearing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOut Law Series:\u003c\/strong\u003e Recommended if your vehicle includes any power adders such as Nitrous Oxide (NOS), Turbocharger, Supercharger, or Trans Brake.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuilding high-performance and racing torque converters since 1970. We are a family-owned business dedicated to your success.\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064207470838,"sku":"49491","price":402.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49490b-scaled-1_a00c0df0-c1c1-4c7d-b379-c146177e5177.png?v=1793210170"},{"product_id":"4l80e-4l85e-ls-night-stalker-series-stock-replacement-no-stall-added-lock-up-gm-torque-converter-part-number-49490","title":"4L80E 4L85E LS Night Stalker Series Stock Replacement No Stall Added Lock Up GM Torque Converter Part Number 49490","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eGM Chevy LS Torque Converter - NIGHT STALKER SERIES (4L80E\/4L85E)\u003c\/h2\u003e \u003cp\u003eEnhance your drivetrain with our high-performance Night Stalker Series Torque Converter, engineered specifically for GM Chevy LS engines. This unit is matched to factory specifications while incorporating heavy-duty components for reliability and durability in demanding applications. Restore factory performance or upgrade with confidence knowing your conversion is built with quality materials and rigorous testing.\u003c\/p\u003e \u003ch3\u003eKey Product Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTransmission Compatibility: 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003eEngine Application: GM LS Series Engines\u003c\/li\u003e \u003cli\u003eSeries: Night Stalker Series\u003c\/li\u003e \u003cli\u003ePart Number: 49490\u003c\/li\u003e \u003cli\u003eStall Range: Stock Stall (No added stall)\u003c\/li\u003e \u003cli\u003eInput Shaft: 35 Spline, bores matched for factory 2-step shaft\u003c\/li\u003e \u003cli\u003eCore Size: Factory 13 inch casing\u003c\/li\u003e \u003cli\u003eBolt Circle Diameter: Factory 11.675 inches\u003c\/li\u003e \u003cli\u003eImpeller Hub: Hardened Chrome Molly, 2.5 inch Impeller Hub\u003c\/li\u003e \u003cli\u003eTorque Converter Style: Modified Extreme Duty Stator, Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003eConstruction Details: Oversized Extreme Duty Single Disk Lock Up, встречается 4 Corner tac Welded Fins or Furnace Brazed\u003c\/li\u003e \u003cli\u003eDrain Plug\/Pilot Diameter: 1.703 inch Crank Pilot\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Class 10.9 or stronger)\u003c\/li\u003e \u003cli\u003eAnti-Balloon Plates: No\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eQuality Assurance\u003c\/h3\u003e \u003cp\u003eEach unit undergoes strict quality controls to ensure maximum performance and longevity, including:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLeak \u0026amp; Pressure Tested\u003c\/li\u003e \u003cli\u003eDigitally Balanced\u003c\/li\u003e \u003cli\u003eExtreme Temperature Heavy Duty O-ring sealing\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eInstallation and Application Guidance\u003c\/h3\u003e \u003cp\u003eAchieve optimal performance and protect your installation with these guidelines:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUse Type F Transmission Fluid for best operational results.\u003c\/li\u003e \u003cli\u003eAlways utilize a transmission cooler to manage heat buildup during operation.\u003c\/li\u003e \u003cli\u003eApply Blue Loctite when securing components for maximum vibration resistance.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Considerations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAdvertised stall performance is highly dependent on the specific vehicle's overall setup and conditions.\u003c\/li\u003e \u003cli\u003eHigher gear ratios may be required, especially when fitted with taller tires.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePerformance Upgrades:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIf you have upgraded intake, headers, exhaust, or cam, we recommend considering our \"Street Bandit Series\" torque converter for a perfect match.\u003c\/li\u003e \u003cli\u003eFor applications involving power adders such as Nitrous Oxide (NOS), Turbochargers, or Superchargers, the \"Out Law Series\" is advised.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cem\u003eBuilding High Performance \u0026amp; Racing Converters Since 1970! Veteran \u0026amp; Family owned and Run company.\u003c\/em\u003e\u003c\/p\u003e \u003cp class=\"small-print\"\u003eDisclaimer: WARNING - Cancer and Reproductive Harm - www.P65warning.ca.gov\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064216449270,"sku":"49490","price":402.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49490b-scaled-1_5e57d31b-942b-4bdc-89cd-ad3aa7cb9952.png?v=1793210198"},{"product_id":"4l80e-4l85e-ls-out-law-series-22-2-800-rpm-single-disk-lock-up-gm-racing-torque-converter-part-number-49702","title":"4L80E 4L85E LS Out Law Series 22-2,800 RPM Single Disk Lock Up GM Racing Torque Converter Part Number 49702","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eGM Chevy LS 4L80E \/ 4L85E Outsourcing Racing Torque Converter\u003c\/h2\u003e \u003cp\u003eEngineered for high-performance LS applications, this SUPER Lightweight Torque Converter is the ultimate upgrade for serious racers and enthusiasts. Designed to handle extreme conditions, whether you are running nitrous, turbochargers, or trans-brakes, this unit provides the perfect combination of durability and efficient power transfer. Built with quality materials and meticulous attention to detail, this converter ensures reliability when your vehicle needs it most.\u003c\/p\u003e \u003cp\u003eThis conversion is ideal for choppier cams and lightweight racing vehicles, requiring maximum response and enduring rigorous track demands.\u003c\/p\u003e \u003ch3\u003eKey Product Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTransmission Compatibility: 4L80E \/ 4L85E\u003c\/li\u003e \u003cli\u003ePart Number: 49702\u003c\/li\u003e \u003cli\u003eSeries: Out Law Racing Series\u003c\/li\u003e \u003cli\u003eInput Shaft: 35 Spline\u003c\/li\u003e \u003cli\u003eStall Range: 2,200 - 2,800 RPM\u003c\/li\u003e \u003cli\u003eCore Size: 9.6 inch\u003c\/li\u003e \u003cli\u003eBolt Circle: Factory 11.675 inch\u003c\/li\u003e \u003cli\u003eTorque Converter Type: Extreme Duty Single Disk Lock Up\u003c\/li\u003e \u003cli\u003eCrank Pilot Diameter: 1.703 inch\u003c\/li\u003e \u003cli\u003eImpeller Hub: Hardened Chrome Molly\u003c\/li\u003e \u003cli\u003eBearings: Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003eConstruction Details: Whole Back Cover Quenched and Hardened; Pump \u0026amp; Turbine Fins Welded or Furnace-Brazed\u003c\/li\u003e \u003cli\u003eFluid Compatibility: Designed for TYPE F transmission fluid use.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFeatures \u0026amp; Quality Assurance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigitally Balanced for smooth, predictable operation.\u003c\/li\u003e \u003cli\u003eExtreme Temperature Heavy Duty O-ring sealing system.\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Requires Class 10.9 or stronger hardware).\u003c\/li\u003e \u003cli\u003eIncludes Anti-Balloon Plates for enhanced durability.\u003c\/li\u003e \u003cli\u003eLeak and Pressure Tested before shipment, ensuring ready operation upon arrival.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; Usage Guidelines\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFor optimal results, pairing this converter with a transmission cooler is highly recommended.\u003c\/li\u003e \u003cli\u003eSecure all hardware using Blue Loctite for maximum hold stability.\u003c\/li\u003e \u003cli\u003eRemember that advertised stall ranges are based on a specific vehicle setup and may vary depending on your installation.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eImportant Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMost vehicles may require additional gear reduction, especially when paired with taller tires.\u003c\/li\u003e \u003cli\u003eFor specific setup advice or further information regarding stall ranges, please contact us at 888-267-7464.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eProudly manufacturing high-performance and racing converters since 1970. We are a veteran and family-owned company dedicated to quality engineering.\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064216776950,"sku":"49702","price":1030.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49702b-scaled-1_878c3b85-c31f-4b7b-a4cb-c4f459f42002.png?v=1793210200"},{"product_id":"4l80e-4l85e-ls-out-law-28-3-200-rpm-lock-up-gm-racing-torque-converter-part-number-49703","title":"4L80E 4L85E LS Out Law 28-3,200 RPM Lock Up GM Racing Torque Converter Part Number 49703","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eGM Chevy LS Torque Converter - Out Law Racing Series (Part #: 49703)\u003c\/h2\u003e \u003cp\u003eEngineered for extreme performance and demanding applications, this Super Light Out Law Racing Series torque converter is the perfect upgrade for your LS engine build. Designed specifically for Choppy Cams and lightweight racing setups, it provides reliable performance when paired with nitrous, turbochargers, or trans-brakes.\u003c\/p\u003e \u003cp\u003eThis high-quality converter features a robust construction, including a whole back cover that is quenched and hardened, ensuring durability under the harshest conditions. It delivers optimal performance for racing applications that require precise control and matched pairing.\u003c\/p\u003e \u003ch3\u003eKey Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSeries: Out Law Racing Series\u003c\/li\u003e \u003cli\u003eApplication: GM Chevy LS Engines (2-Step Input Shaft)\u003c\/li\u003e \u003cli\u003ePart Number: 49703\u003c\/li\u003e \u003cli\u003eStall Range: 2,800 - 3,200 RPM\u003c\/li\u003e \u003cli\u003eCore Diameter: 9.6 inch\u003c\/li\u003e \u003cli\u003eBolt Circle: Factory 11.675 inch\u003c\/li\u003e \u003cli\u003eInput Shaft Spline: 35 Spline\u003c\/li\u003e \u003cli\u003eFluid Pilot: 1.703 inch Crank Pilot\u003c\/li\u003e \u003cli\u003eClutch Action: Extreme Duty Single Disk Lock Up (Anti-Balloon Plates)\u003c\/li\u003e \u003cli\u003eConstruction Detail: Hardened Chrome Molly Impeller Hub, Torrington Style Incased Bearings\u003c\/li\u003e \u003cli\u003eAssembly: All Pump \u0026amp; Turbine Fins Welded or Furnace-Brazed\u003c\/li\u003e \u003cli\u003eBolt Size: 10mm X 1.5 Pitch (Requires Class 10.9 or Stronger Bolts)\u003c\/li\u003e \u003cli\u003eTesting: Leak \u0026amp; Pressure Tested, Digitally Balanced\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eApplication Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWarning: For best performance, consult your vehicle's setup details. Most vehicles may require additional gearing, especially when fitted with taller tires.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSetup \u0026amp; Maintenance Recommendations\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFor optimal results, use TYPE F transmission fluid.\u003c\/li\u003e \u003cli\u003eAlways install an additional Transmission Cooler for extreme duty setups.\u003c\/li\u003e \u003cli\u003eUse Blue Loctite during assembly.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIf you are serious about building high-performance or racing applications, trust a veteran and family-owned company that has been building premium converters since 1970. Contact us with any questions regarding our service or consult our team at 888-267-7464.\u003c\/p\u003e","brand":"Boss Hogg","offers":[{"title":"Default Title","offer_id":52064216940790,"sku":"49703","price":1089.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/7261\/9766\/files\/49702b-scaled-1_8b083095-c33d-4abf-b762-096f6f2eded2.png?v=1793210201"}],"url":"https:\/\/bosshogtorqueconverters.com\/collections\/shop-by-transmission-4l80e-torque-converters.oembed","provider":"Boss Hog Torque Converters","version":"1.0","type":"link"}