68RFE/AS69 Billet flex plate
The Sun Coast billet flywheels are CNC machined from a forging for strength and reliefs are machined out between the converter mounting area and the crank flange to enable some flex. We designed our flexible billet flywheel with the understanding that it needs to flex but at the same time we added extra thickness to prevent cracking. We started with a better quality material and a better manufacturing process to make it stronger. Our flexible flywheel made or exceeded all the new SFI specification 29.3 requirements for materials, mechanical properties, design and rotational integrity.
Replaces Factory Flex Plate
Exceed 29.3 SFI Specifications
NOTE: 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 135mph. It was changed in 2008 from the 29.1 SFI specification to the SFI specification 29.3 for automatic transmission flex plates for diesel applications. The new rules for the flexplate requires that the material can not be a stamped metal as many OEM and aftermarket flex plates are. To maintain the SFI specification 29.3 requirements, the flex plate must be replaced every three years.