Product Summary

.530" Valve Guide Diameter, .34375" Valve Stem Diameter

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    Key Specs

    MFG. Part #503-16
    BrandCOMP Cams
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    COMP Cams 503-16 Details

    COMP Cams Positive Stop Teflon Valve Stem Oil Seals, 11/32" Valve Stem Diameter.

    COMP 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 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.

    COMP Cams 503-16 Specifications

    KEY SPECS
    MFG. Part #503-16
    BrandCOMP Cams
    GENERAL
    GTIN Code036584140160
    Valve Guide Diameter.530"
    Valve Stem Diameter.34375"

    Ratings & Reviews

    4.7

    3 Reviews

    Overall Assessment

    Customers appreciate our product for its quality, durability, and precise fit. Many praised its longevity and superiority to other brands. Some customers encountered initial installation challenges, but once installed, the product is acknowledged to function excellently. Worth noting is its competitive quality, frequently leading customers to choose it above rivals. Unfortunately, the product's resilient structure led to breakages for some during the installation process.

    4.7

    3 reviews

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    Fit as they should

    5.0

    3 years ago

    Steve

    Iowa

    Verified

    Fit as they should, have had no issues up to this point

    Would Recommend

    Works great after installed. A pain to install.

    4.0

    4 years ago

    JP

    MO

    Verified

    Installed product is great. Installation is a pain. Top broke off of 2 of them and has to order more.

    Quality

    5.0

    7 years ago

    Bandit

    Ryan Oklahoma

    Verified

    Will last a long time quality product

    Showing 3 of 3 reviews

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