Chevy SBC 350 2Pc Rms 153 Tooth 10" Internal Balance Heavy Duty Flexplate Speedmaster gilmer drive-style crankshaft pulley

Speedmaster gilmer drive-style crankshaft pulley spacers are specifically designed to help achieve proper belt alignment

premium-grade 4140 chromoly steel

They use silicon aluminum bi-metal construction

When building rear-ends for race cars or trucks

Chevy SBC 350 2Pc Rms 153 Tooth 10" Internal Balance Heavy Duty Flexplate Speedmaster gilmer drive-style crankshaft pulleySpeedmaster 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.