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Your cart is empty.COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop 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 seal is used. The umbrella seals require no machining, but with the seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don't forget the valve seals.
Customer
Reviewed in the United States on July 4, 2024
Comp usually sells quality merchandise. I bought the same part number for a1999 build sheet for a 440.My valves tore most of the new seals after lubing the seals and valves. Ended up using the old seals
hardwdray
Reviewed in the United States on October 25, 2023
Great value and fast shipping
Matt Smith
Reviewed in the United States on April 22, 2016
Did not work on 390 Fe Ford engine. I could not get them on the valve stem. I purchased more like stock ones black felpro.
Darryl Campbell
Reviewed in the United States on May 7, 2015
On time, perfect fit
SSHANDYMAN
Reviewed in the United States on July 2, 2013
THESE WORK OK A BIT DIFFICULT TO INSTALL EVEN WITH PROPER TOOL.THEIR ARE SOME OTHER SEALS THAT ARE EASER TO INSTALL AND WORK GREAT MADE BY HOWARD BUT THESE WHERE THE FIRST WE FOUND THIS TIME WHEN WE WAS IN A RUSH.REGULAR SHIPPING ARRIVED FAIRLY QUICK
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