Ford SB 289 302 351 351C Windsor 157 Tooth 28Oz Balance Heavy Duty Flexplate and the reverse lockout mechanism

and the reverse lockout mechanism eliminates the chance of transmission damage from accidentally shifting into reverse

Speedmaster Stainless steel rollers are manufactured from heat-treated stainless steel and alloy steel tip rollers

made from 4340 round bar to exact tolerances

capable of withstanding valve spring load up to 600lbs

They are an economical solution to replacing failure-prone stock supports

Ford SB 289 302 351 351C Windsor 157 Tooth 28Oz Balance Heavy Duty Flexplate and the reverse lockout mechanismSpeedmaster 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.