Circle D Ford 245mm Pro Series 5R55 Torque Converter

Circle D Specialties Ford 245mm Pro Series 5R55 Torque Converter

The Circle D Specialties Ford 245mm Pro Series 5R55 Torque Converter is the ultimate solution for enthusiasts seeking lightning-fast engine response and explosive launches from their modified Ford build. Featuring a highly compact 245mm diameter, this converter drastically reduces rotational mass compared to a factory unit. This lightweight footprint allows your engine to rev faster and flash instantly into its optimal powerband, making it perfect for aggressive street cars and weekend track warriors equipped with a 5R55 transmission.

Delivering massive value and unshakeable strength, this Pro Series converter features a rigid billet front cover and a billet lockup apply piston, completely eliminating the flex and ballooning issues common with stamped factory components. Inside, a flanged style hub ensures superior anti-flex durability, while the internal assemblies are fully furnace brazed and hand TIG welded for maximum structural integrity under heavy torque loads. Uniquely versatile, this unit can also be easily converted for use with a 4R70 transmission down the line. Hand-assembled to exacting tolerances, it delivers dominant, reliable track performance while maintaining composure for street driving.

Key Features

• Designed specifically for Ford 5R55 transmissions
• Compact 245mm diameter for drastically reduced rotational mass and faster throttle response
• Rigid one-piece billet front cover and billet lockup apply piston prevent flexing and ballooning
• Flanged style hub engineered for superior anti-flex durability
• Fully furnace brazed internals with hand TIG welded construction
• Heavy-duty Torrington style bearings for smooth, reliable operation
• Highly versatile design can be easily converted to 4R70 applications

Specifications

• Application: High-Performance Street/Strip Torque Converter
• Transmission Compatibility: Ford 5R55 (Convertible to 4R70)
• Converter Diameter: 245mm
• Construction: Billet Front Cover & Piston, Furnace Brazed, Hand TIG Welded
• Bearings: Heavy Duty Torrington Style Bearings
• Options: Multiple Stall Speeds (3200 up to 4700 RPM) and Lock-Up Configurations available

Notes

• Custom manufactured product built to your exact specifications.
• Estimated lead time: 3-4 weeks.