HD Billet Flexplate SFI 8-Bolt Hemi - 136 Tooth

The HD Billet Flexplate SFI 8-Bolt Hemi - 136 Tooth is a precision-engineered component designed for high-performance Hemi engine builds and transmission swaps. Built for serious automotive enthusiasts and professional mechanics, this flexplate bridges your Hemi engine and automatic transmission with the strength and reliability required for modified powerplants. Whether you're upgrading a stock Hemi or completing a complete drivetrain conversion, this SFI-certified flexplate is engineered to handle the increased torque and rpm demands of performance modifications without compromise.

Manufactured from premium billet material, this flexplate offers superior rigidity and durability compared to cast alternatives, reducing flex under load and improving power transfer efficiency. The 136-tooth count is factory-matched for Hemi engines paired with popular automatic transmissions, ensuring proper engagement with your torque converter. The 8-bolt pattern provides secure mounting directly to the engine's crankshaft flange, while the SFI 8.1 certification guarantees that the component meets strict safety standards for racing and high-performance street applications—critical for reliability when boost, nitrous, or stroker combinations are in play.

This flexplate is ideal for builders working with Dodge, Chrysler, and Jeep vehicles equipped with modern Hemi powerplants (5.7L, 6.1L, and 6.4L variants). Installation requires engine removal or transmission separation and should be performed by an experienced technician familiar with crankshaft work. The 10.65 lb weight is optimized for strength without excessive rotating mass, supporting both naturally aspirated and forced-induction builds. Pair this component with a quality torque converter and transmission cooler for maximum reliability in street, strip, or off-road applications.