COMP Cams 3/8 Valve Stem Seals Posi. Stop Teflon .530 Water Neck Spacer 1/2 in NPT Female Port

1/2 in NPT Female Port

while a "K" suffix indicates bearings which are coated with moly/graphite

dial indicator

Fits 1982-1995 Ford

heavy-duty diaphragms

COMP Cams 3/8 Valve Stem Seals Posi. Stop Teflon .530 Water Neck Spacer 1/2 in NPT Female PortCOMP 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