Product Summary

Universal Fit

    Key Specs

    MFG. Part #91003017
    BrandSpeedway Motors
    Flange Style4-Bolt
    Material TypeAluminum

    Need To Know

    Free Shipping on Orders Over $149

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy

    Speedway Motors 91003017 Details

    These nice thick Finned Aluminum Header Block-Off Caps are now available for triangular, round, and square header flanges. These come either as cast or with the edges and fin tips polished. They look great painted to match or compliment your engine or car color.

    Our handy Header Cap Table gives you three different ways to measure your header flange. Prices are per pair.

    • Round Header Cap
    • Pair
    • Polished Edges/Fin Tips
    • 5" Outside Dimension
    • Sanderson Bolt Hole Circle
    • Fits Jayster Tubing

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    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, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. 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.

    Speedway Motors 91003017 Specifications

    MFG. Part #91003017
    BrandSpeedway Motors
    Flange Style4-Bolt
    Material TypeAluminum
    Sold in QuantityPair