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COMP Cams Valve Seals 11/32in PTFE W/.50

SKU: CCA510-12

Engine Valve Stem Oil Seals

CCA Valve Seal Kits...

COMP Cams Valve Seals 11/32in PTFE W/.50

SKU: CCA510-12

Engine Valve Stem Oil Seals

CCA Valve Seal Kits...

A$58.41
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals 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 Seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop PTFE Seal is used. We also have a smaller diameter Viton Seal available for triple spring Applications.

Product Overview

COMP Cams offers a complete line of valve stem oil seals, from the stock GM o-ring to the positive-stop PTFE seal. These seals 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 seal is normally used when a larger than-stock diameter spring is used, and in the case of a double spring, the positive-stop PTFE seal is used. Smaller diameter Viton seals are also available for triple spring applications. Both the o-ring and the umbrella seals require no machining, but when using the PTFE seal it is necessary to disassemble the heads and machine the top of the guide with a special cutter, which can also be found on this page.

Product Details

Amazon ASIN:B002EE6I38
C.A.R.B. E.O. Number:N/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?:Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?:Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?:Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?:Yes
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?:Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption Reason:No impact on pollution output of vehicle.
California Proposition 65:WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Description:Set of 12 PTFE Valve Seals for .500" Guide Size, 11/32" Valve Stem
Guide Size:.500"
Part Number:cca510-12
Seal Outer Diameter:0.6
Title:Set of 12 PTFE Valve Seals for .500" Guide Size, 11/32" Valve Stem
Valve Guide Outer Diameter:0.5
Valve Seal Type:Positive Stop PTFE
Valve Size:11/32" / .600"
Valve Stem Outer Diameter:11/32

Application Summary

Engines w/ 0.500" OD Valve Guides and 11/32" Valve Stems

Part Type

Engine Valve Stem Oil Seal Set

Data: v4.2 - Upd: 2026-10-13 17:46:18

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
510-12
Product Attributes - Part Type
Engine Valve Stem Oil Seals
Product Attributes - Product Line
COMP Cams Valve Seals
Product Attributes - UPC
036584084853
Product Attributes - Valve Stem Diameter (in.)
0.344 in.
Product Attributes - Valve Stem Diameter (mm)
8.74mm
Product Attributes - Valve Stem Seal Type
Positive stop
Product Attributes - Valve Stem Seal Material
PTFE
Product Attributes - Machine Work Required
Yes
Product Attributes - Valve Guide Diameter (in.)
0.500 in.
Product Attributes - Valve Stem Seal Outside Diameter (in.)
0.600 in.
Product Attributes - Quantity
Sold as a set of 12.
Product Attributes - Notes
Requires machining the top of the valve guide with a special .500 in. diameter cutter.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca510-12
SFX Item ID 4120535
Supplier Item Code 4120535
Manufacturer SKU 510-12
Manufacturer UPC 36584084853
Alternative References 11/32in, W/.50

Compatibility

Engines w/ 0.500" OD Valve Guides and 11/32" Valve Stems

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