Circle D GM 300mm HP Series 4L60 LS Torque Converter (Billet Front)

Circle D Specialties GM 300MM HP 4L60 LS Torque Converter

The Circle D Specialties GM 300MM HP 4L60 LS Torque Converter is designed for GM vehicles equipped with a 4L60 transmission and LS engine, offering an ideal upgrade for daily driven or higher performance strip performance applications. Featuring a optional elevated stall speed, this converter provides improved acceleration and responsiveness while maintaining stock-like drivability during normal driving conditions.

Hand TIG welded for strength and durability, this 300mm torque converter incorporates a high-carbon spun wound lock-up clutch lining and heavy-duty Torrington bearings for reliable operation. Featuring a billet front cover and designed to support beyond 750 rear-wheel horsepower, it delivers the balance of performance and everyday usability that enthusiasts expect from Circle D Specialties. Drivers with lower power needs could consider a stamped front cover, found here.

Key Features

• Designed for GM 4L60 transmissions with LS engines
• Improved acceleration while maintaining street-friendly drivability
• Hand TIG welded construction
• High-carbon spun wound lock-up clutch lining
• Heavy-duty Torrington bearings
• Supports 750 rear-wheel horsepower
• Ideal for daily driven and high performance applications

Specifications

• Application: Torque Converter
• Transmission Compatibility: GM 4L60
• Engine Compatibility: LS
• Converter Diameter: 300mm (12 in.)
• Construction: Hand TIG Welded with Billet Cover
• Clutch Lining: High-Carbon Spun Wound Lock-Up
• Bearings: Heavy-Duty Torrington Bearings
• Horsepower Capacity: 750 Rear-Wheel Horsepower

Notes

• Built to order.
• Estimated build time: 4-6 weeks.