C4 24 Spline Out Law 35-4,200 RPM Ford Racing Torque Converter Part Number 25644
Ford C4 Out Law Racing Series Super Lightweight Torque Converter - Part Number 25644
Achieve optimal power transfer and superior driving characteristics with our precision-machined Super Lightweight Torque Converter, designed specifically for high-performance and racing applications. Built using heavy-duty Torrington Style Incased Bearings, this converter is engineered to handle extreme duty while maintaining flawless operation across demanding builds. Ideal for Choppy Cams and lightweight vehicles requiring maximum efficiency, this converter is matched with a Hardened Chrome Moley Impeller Hub and features a 1.375-inch Crank Pilot.
This billet torque converter is meticulously crafted from quenched and hardened components, offering unparalleled durability and leak resistance. It includes Anti-Balloon Plates for stability and is fully digitally balanced after rigorous Leak & Pressure Testing, ensuring dependable performance when paired with powerful drivetrains.
Key Product Specifications
- Transmission Type: Ford C4
- Series: Out Law Racing Series
- Part Number: 25644
- Stall Range: 3,500 - 4,200 RPM
- Core Diameter: 9.6 inches
- Bolt Circle Diameter: 11 7/16 inches
- Turbine Hub Splines: 24 Spline
- Stator Height (Counted): Built to 5 7/8 inches Tall
- Impeller Hub: Hardened Chrome Moley, 24 Spline Turbine Hub
- Stator Material: Modified Extreme Duty, Precision CNC Machined
- Pilot Diameter: 1.375 inches (Precision CNC Machined)
- Bolt Size: 3/8 X 16 TPI (Grade 8 Only)
- Pump & Turbine Fins: All fins are Welded or Furnace-Brazed
Performance Enhancers
- Precision CNC Machined Pump and Stator
- Whole Back Cover Quenched and Hardened
- Features Anti-Balloon Plates
- Suitable for Big Bellhousing and 164 Tooth Flywheel
- Optimal with Nitrous, Turbo, Super Charger, and Trans-Breaks
Installation & Performance Notes
- All advertised stall ranges are based on a specific vehicle's setup and may vary depending on your application. Please contact us for further consultation.
- Use Old School Type F Transmission Fluid for the best operational results.
- Always incorporate an additional transmission cooler to maintain peak performance and longevity.
- Applying Blue Loctite is recommended for maximum component integrity.
Disclaimer: We are building high-performance and racing converters since 1970. For serious inquiries about your build, please contact us at (888) 267-7464. Veteran Owned and Family Run.
| Actual Stall | Stall Range Will vary or change depending on Engine/Weight/& Run Out of the Gear. |
| Anti-Ballooning Plates | YES |
| Balanced | Yes |
| Bell Housing | Large |
| Bolt Circle | 11.4375 |
| Bolt Size | 3/8 X 16 TPI GRADE 8 ONLY |
| Crank Pilot | 1.375 |
| Diameter Core | 9.6 inch |
| Lock Up | NO |
| Series | Out Law |
| Spline | 24 |
| Stall Range | 3500-4,200 RPM |
| Torrington Bearings | Yes |
| Weled Fins | All Fins |
