Valve Stem Oil Seals, Metal Body Viton Seal Suit 3/8" Valve, .530" Valve Guide diameter

COMP Cams offers a completeline of valve seals, from the stock GM O rings to the positive-stop PTFE seals. Theyare a must to keep unwanted oil from entering the combustion chamber through theclearance in the valve guides.The O ring seals use the standard retainer and oil splash shield. The umbrella seals are normally used when alarger than stock diameter spring is used. In the case ofa double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter Vitonseals.