Product Summary

Chevy Small Block V8, 1800-5800 RPM Range, Steel

    Key Specs

    MFG. Part #12-268-4
    BrandCOMP Cams
    Camshaft TypeHydraulic Flat Tappet

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy


    There are many things that effect vacuum. Camshaft lobe separation, lifter style, intake manifold, piston rings, compression ratio and overall valve and engine condition. Due to many and varied engine combinations, Speedway Motors offers no warranty on camshaft and or lifters for either performance, vacuum or longevity.

    Must be used with break-in oil additive (sold separately).

    Item Details

    For use with Rhoads Hydraulic Lifters


    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.


    MFG. Part #12-268-4
    BrandCOMP Cams
    Camshaft TypeHydraulic Flat Tappet
    RPM Range1800-5800
    Intake Duration268
    Exhaust Duration280
    Intake Duration (.050" Lift)224
    Exhaust Duration (.050" Lift)230
    Intake Valve Lift w/ Rocker Arm Ratio0.479"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.480"
    Lobe Separation114 °
    Material TypeSteel
    Grind NumberCS XE268H-14
    GTIN Code036584063292
    Valve Springs RequiredYes
    Sold in QuantityEach