2011-2016 Duramax Zero Balance Billet Flex Plate (A1-BFP-ZB)

This replaces the factory flywheel/flex plate with a improved bil- let 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

Part Number: A1-BFP-ZB

• Removes Heavy Cast Iron
• Improved Billet 1 piece design
• Eliminates the Weak Stamped Steel Flex Plate

• A SFI certified flywheel flex plate is required 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 specification to the SFI specification 29.3 for automatic transmission flexplates for diesel applications.
• The new rules for the flex plate requires that the material cannot be a stamped metal as are many OEM and aftermarket flex plates.
• To maintain the SFI specification 29.3 requirements, the flex plate must be replaced every three years.

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• ?

  Could I just bolt this up to my stock Engine or do I need to send it away to get balanced and if I have to send it away would I send it by itself or with my engine?

  No, this zero-balance flex plate cannot be bolted to a stock engine. Bolting a zero-balance flex plate to a stock, externally balanced Duramax will cause severe rotational vibration. This will quickly wipe out your main bearings, crack the crankshaft, and lead to total engine failure.