LB7|LLY Duramax Sun Coast A1-BFP-1 Billet Flex Plate SKU: sunA1-BFP-1

This replaces the factory flywheel/flex plate with a improved billet steel one-piece design and eliminates the heavy cast iron and the weak stamped steel flex plate. This is a must with the high torque in conjunction with a better designed torque converter that can transfer the torque with no slip.


The flex plate is bolted to the crankshaft and then the converter is bolted to flex plate. The torque from the motor is transferred to the flex plate, then goes from the flex plate to the torque converter and finally to the in- put shaft in the transmission. With increased torque from the engine, it can crack and/or rip the center out of a stock flex plate.


• Eliminates the stock flex plate that can break under high torque
• One-piece billet steel design is much stronger than the factory version
• Bolts on in minutes - no drilling or modifications required
• Compatible with all torque converters


NOTE: A SFI certified flywheel flex plate is re- quired on drag racing vehicles running 11.99 and quicker in the 1/4 mile and 7.49 and quicker in the 1/8 mile, or any vehicle exceeding 135 mph. It was changed in 2008 from the 29.1 SFI specificatio[...]