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Oil Seals Valve Stem Set Of 507-8 & 508-8
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Estimated Ship Date: Mar 31, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
509-16
Part Type:
Product Line:
Summit Racing Part Number:
CCA-509-16
UPC:
036584140375
Valve Stem Diameter (in.):
0.313 in.
Valve Stem Diameter (mm):
7.95mm
Valve Stem Seal Type:
Positive stop
Valve Stem Seal Material:
Viton®
Machine Work Required:
No
Valve Guide Diameter (in.):
0.446 in.
Quantity:
Sold as a set of 16.
Notes:
Contains 8 intake seals and 8 exhaust seals.
COMP Cams Valve Seals
COMP Cams offers a complete line of valve seals, from the stock GM O-rings to the positive-stop PTFE seals. They are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The O-ring seals use the standard retainer and oil splash shield. The umbrella seals are normally used when a larger-than-stock diameter spring is used. In the case of a double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter Viton® seals.
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