C4 24 Spline Night Stalker Stock Replacement No Stall Added Ford Torque Converter Part Number 25040

Ford C4 Night Stalker Series Torque Converter (Part #25040)

Engineered for durability and matched specifically to your 164 Tooth Flywheel, this Night Stalker Series torque converter provides a reliable stock stall performance. Built with extreme-duty components and precision CNC machining, this unit ensures proper power transfer while maintaining the integrity of your transmission. This converter is designed for big bellhousing applications and ready to handle performance use.

Key Fitment and Performance Details

• Transmission Type: Ford C4
• Series: Night Stalker Series
• Stall Range: Stock Stall (No stall added)
• Flex Plate Count: 164 Teeth
• Core Size: 12 Inch
• Bolt Circle Diameter: 11 7/16 inches

Construction Specifications

• Torque Converter Height: Built to 5 7/8 inches Tall
• Impeller Hub: Hardened Chrome Moley, 24 Spline Turbine Hub
• Torque Converter Clutch (TCC) Pilot: 1.375 inch Crank Pilot
• Bolt Specification: 3/8 X 16 TPI (Grade 8 bolts required)
• Construction Details: Precision CNC Machined, Torrington Style Incased Bearings, Modified Extreme Duty Stator
• Flywheel Compatibility: Designed for 164 Tooth Flywheels, Big Bellhousing use
• Quality Assurance: Digitally Balanced, Leak & Pressure Tested, Quality Inspections at Every Step
• Design Feature: Pins are 4 corner Tac Welded or Furnace-Brazed, NO Anti-Balloon Plates

Installation and Maintenance Notes

• All advertised stalls are based on a specific vehicle setup; actual stall ranges may vary depending on your vehicle's configuration.
• Use Old School Type F transmission fluid for optimal performance.
• Always use an additional Transmission Cooler when operating this unit.
• Apply Blue Loctite for maximum installation security.

Recommended Upgrades

• Consider upgrading to the "Street Bandit Series" converter if you have also upgraded intake, heads, headers, exhaust, cam, or gearing.
• If you incorporate power adders like Nitrous Oxide (NOS), turbochargers, superchargers, or a transmission brake, we recommend the "Out Law Racing Series" torque converter.

Building High Performance & Racing Converters Since 1970! Veteran Owned and Family Run. For further assistance or specialized builds, please contact us at (888) 267-7464.