Circle D GM 258mm Pro Series 4L60 LT Torque Converter
CIRCLE D SPECIALTIES
SKU #CDS-4L60-LT-PRO-258MM
$1,199.00
Was
$1,199.00
Was
Was
Circle D Specialties GM 258mm Pro Series 4L60 LT Torque Converter The Circle D Specialties GM 258mm Pro Series 4L60 LT Torque Converter is a highly versatile, high-performance upgrade for heavily modified GM vehicles equipped with a 4L60 transmission and a modern LT engine. The 258mm (10 1/4-inch) diameter offers a perfect middle ground—significantly reducing rotational mass for rapid throttle response and quick acceleration, while maintaining slightly more surface area than our 245mm option for excellent streetability and efficient torque transfer.
SKU
CDS-4L60-LT-PRO-258MM
Qty
Circle D Specialties GM 258mm Pro Series 4L60 LT Torque Converter
The Circle D Specialties GM 258mm Pro Series 4L60 LT Torque Converter is a highly versatile, high-performance upgrade for heavily modified GM vehicles equipped with a 4L60 transmission and a modern LT engine. The 258mm (10 1/4-inch) diameter offers a perfect middle ground—significantly reducing rotational mass for rapid throttle response and quick acceleration, while maintaining slightly more surface area than our 245mm option for excellent streetability and efficient torque transfer.
Engineered to deliver massive value and handle serious power, this Pro Series converter features a rigid billet steel front cover and billet piston to completely eliminate flexing and ballooning under load. Internally, it utilizes a flanged impeller hub for superior anti-flex durability and a deep groove ball bearing design to maximize clutch life. Furnace brazed and featuring a hand TIG welded turbine hub, this converter is hand-assembled to exacting tolerances to ensure bulletproof reliability for aggressive street and strip applications.
Key Features
- Designed specifically for GM 4L60 transmissions paired with LT engines
- 258mm (10 1/4") diameter delivers a superior balance of rapid engine response and streetable torque holding
- Rigid one-piece billet front cover and billet piston prevent flexing and ballooning
- Deep groove ball bearing design significantly extends clutch life
- Flanged impeller hub engineered for superior anti-flex durability
- Furnace brazed internals with hand TIG welded turbine hub
- Heavy-duty Torrington bearings for smooth, reliable operation
- Hand-assembled to exacting tolerances for dominant track performance
Specifications
- Application: High-Performance Street/Strip Torque Converter
- Transmission Compatibility: GM 4L60
- Engine Compatibility: LT
- Converter Diameter: 258mm (10 1/4")
- Construction: Billet Front Cover, Furnace Brazed, Hand TIG Welded Turbine Hub
- Bearings: Torrington Bearings & Deep Groove Ball Bearing
- Options: Multiple Stall Speeds (2800 up to 3700 RPM) and Lock-Up configurations available
Notes
- Custom manufactured product built to your exact specifications.
- Estimated lead time: 3-4 weeks.
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