Mr. Gasket 1971 - Rear Main Seal Gasket

Mr. Gasket 1971 - Rear Main Seal Gasket

Mr. Gasket Rear Main Seal - Viton® - High Vacuum

Fits Chevrolet Small Block with two-piece rear main seal. Recommended for use with external vacuum pump.

This Mr. Gasket Rear Main Seal is made from Viton® Rubber. This style of rubber can handle high temperature like silicone rubber, but with superior abrasion resistance. It's durability and design make it recommended for applications that have high engine vacuum, like racing engines that utilize external vacuum pumps for crankcase evacuation.

• Made From Silicone
• Withstands Extreme Engine Oil Temps
• Injection Molded For A Precise Fit