Chevy SBC 350 Aftermarket Race Block Cam Bearing Set They use silicon aluminum bi-metal

They use silicon aluminum bi-metal construction

and most include bolt-in baffles that can be replaced

The Speedmaster aluminum pinion supports are completely CNC machined from our designed forgings or billet 6061-T6

and flame ball-milled finishes

aircraft-style cap and -10 AN pickup

Chevy SBC 350 Aftermarket Race Block Cam Bearing Set They use silicon aluminum bi-metalThese Speedmaster camshaft bearings are made to meet or exceed OEM parts when it comes to strength and durability. They will help to give your motor extra life, and their quality construction and superior materials will help to protect your vital engine parts from the harmful effects of friction.