COMP Cams Valve Seals - Positive Stop Teflon - .530" Guide - 11/32" - (Set of 16) Tire Softeners & Treatments 3/8 in Mounting Slot

3/8 in Mounting Slot

2016-2018 Chevrolet Silverado 2500 HD

swivels +/- 20 degrees

Japanese and other worldwide engine manufacturers

1955-1967 Chevrolet Corvette

COMP Cams Valve Seals - Positive Stop Teflon - .530" Guide - 11/32" - (Set of 16) Tire Softeners & Treatments 3/8 in Mounting SlotCOMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger than stock diameter spring is used, in the case of a double spring, the positive stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon