Circle D GM 245mm Pro Series 6L80E Torque Converter

Circle D Specialties GM 245mm Pro Series 6L80E Torque Converter

The Circle D Specialties GM 245mm Pro Series 6L80E Torque Converter is the ultimate solution for enthusiasts seeking lightning-fast engine response and explosive launches from their modified GM vehicle. Featuring a highly compact 245mm (9 3/4-inch) diameter, this converter drastically reduces rotational mass compared to a bulky 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 6L80 transmission.

Engineered to deliver massive value and handle serious power, this Pro Series converter features a rigid billet front cover and a billet lockup piston, completely eliminating the flex and ballooning issues common with stamped factory components. Crucially, it utilizes a Triple Disk Lockup clutch assembly, providing unmatched holding capacity for wide-open throttle (WOT) lock-up tuning on modern 6-speed applications. Inside, a flanged impeller hub ensures superior anti-flex durability, while the internal assemblies are fully furnace brazed and hand TIG welded for maximum structural integrity. Pair it with an optional heavy-duty Billet Flexplate for LS or Gen-V LT engines to complete your bulletproof drivetrain package.

Key Features & Upgrades

• Designed specifically for GM 6L80 / 6L80E transmissions
• Compact 245mm (9 3/4") diameter for drastically reduced rotational mass and faster throttle response
• Triple Disk Lockup for extreme holding capacity during wide-open throttle (WOT) shifts
• Rigid one-piece billet front cover and billet lockup piston prevent flexing and ballooning
• Flanged impeller hub engineered for superior anti-flex durability
• Optional Billet Flexplate: Available in 6-Bolt or 8-Bolt Crank Flange for LS/Gen-V LT Engines
• Fully furnace brazed internals with hand TIG welded construction
• Heavy-duty Torrington bearings for smooth, reliable operation

Specifications

• Application: High-Performance Street/Strip Torque Converter
• Transmission Compatibility: GM 6L80 / 6L80E
• Converter Diameter: 245mm (9 3/4")
• Construction: Billet Front Cover & Piston, Furnace Brazed, Hand TIG Welded
• Lockup Type: Triple Disk
• Bearings: Torrington Bearings
• Options: Multiple Stall Speeds (3000 up to 4600 RPM), Sprag Options, and Billet Flexplate available

Notes

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