Product Summary

0.63" Inside Diameter, 1.55" Outside Diameter, Steel

    Key Specs

    MFG. Part #4777-16
    BrandCOMP Cams

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    COMP Cams 4777-16 Details

    4777-16 - ID Spring Seats, 1.55 X 630 X 790.

    The old standard shims will not hold up to the extreme spring pressures and high RPM in today’s race engines. COMP Cams offers a simple but effective solution to this problem. These Valve Spring Locators provide a thin, hardened steel alloy seat that will not only protect the head and shim, but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the part. This required that the head be machined a great deal to accept this cup so COMP now offers an I.D. locator with the locating shoulder on the inside, as well as the spring cup.

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    COMP Cams 4777-16 Specifications

    MFG. Part #4777-16
    BrandCOMP Cams
    Speedway Motors Catalog Part #282-477716
    Inside Diameter0.63"
    Outside Diameter1.55"
    Material TypeSteel
    Locating Shoulder TypeInside
    Overall Thickness0.06"
    Sold in QuantitySet
    GTIN Code036584393115
    Inner Spring I.D.0.79"