Chevy BBC 454 Gen 5 & 6 1991 - Up 1Pc RMS Rubber Oil Pan Gasket Speedmaster ring and pinion preload

Speedmaster ring and pinion preload spacer

they have hardened stem tips for durability and are swirl-polished

As the horsepower in your performance vehicle goes up so does the strength of the read end housing

They accurately measure camshaft centerline

Compatible with Gas

Chevy BBC 454 Gen 5 & 6 1991 - Up 1Pc RMS Rubber Oil Pan Gasket Speedmaster ring and pinion preloadSpeedmaster gaskets are designed for today's performance engines, which can create excessive amounts of vacuum and pressure in the oil pan. They're constructed from a cellulose nitrile material that features excellent tensile strength and superior blowout resistance, and their latex coating conforms to minor sealing surface irregularities for a better seal.