COMP Cams 3/8 Valve Stem Seals Posi. Stop Teflon .530 4030 Black / White Stripe

Black / White Stripe

On the Mark V and VI Big Block Chevrolet engines

6" center to center mounting holes

Pit sockets are available with 5" or 11" extensions and include our Super Socket for fast wheel changes without jamming lug nuts

COMP Cams 3/8 Valve Stem Seals Posi. Stop Teflon .530 4030 Black / White StripeCOMP 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