Chevy BBC 454 2Pc Rms 168 Tooth 11" External Balance Heavy Duty Flexplate Note: The 52000/52001 manifold is

Note: The 52000/52001 manifold is a stock replacement/street legal part for 302

Convert any one-piece GM TH400 case into a two-piece case with our Speedmaster TH400 case adapter

Whether you're rebuilding a stock engine or changing to valve springs that have more seat pressure

using an O-ring to prevent leakage

Chevy BBC 454 2Pc Rms 168 Tooth 11" External Balance Heavy Duty Flexplate Note: The 52000/52001 manifold isSpeedmaster flexplates make excellent upgrades to your stock design. They feature extra thick steel that's double welded to the ring gear for added strength and anodized for corrosion resistance. Speedmaster flexplates will withstand the extreme power and rpm of today's engines.