Ford SB 289 302 351 351C Windsor 157 Tooth 28Oz Balance Heavy Duty Flexplate Kit Our dual plane big block

Our dual plane big block manifold is now available with rectangular ports

*Will not work on engines w/reverse flow heads as utilized on 1992-96 LT-1 Corvette

intake gaskets

These can be used on std or aftermarket plenum manifolds

It is set up to accept a spread bore carb

Ford SB 289 302 351 351C Windsor 157 Tooth 28Oz Balance Heavy Duty Flexplate Kit Our dual plane big blockSpeedmaster 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.