Chevy SBC 350 2Pc Rms 168 Tooth 11" Internal Balance Heavy Duty Flexplate If your standard Bowtie block

If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block

This feature is sometimes called an air gap design

Capable of handling 2500+ HP

Featuring a boltin EFI downdraft injection system and complete serpentine drive kit

Get all of the performance that your engine can produce with these durable pushrods designed especially for high-lift cams

Chevy SBC 350 2Pc Rms 168 Tooth 11" Internal Balance Heavy Duty Flexplate If your standard Bowtie 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. Speedmaster flexplates will withstand the extreme power and rpm of today's engines.