Product Summary

Hydraulic Flat Tappet Camshaft Type

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    Key Specs

    Camshaft TypeHydraulic Flat Tappet
    RPM Range2000-6200
    Intake Duration (.050" Lift)234
    Exhaust Duration (.050" Lift)244
    Lobe Separation111 °
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    Need To Know

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    COMP Cams 11-243-4 Details

    COMP Cams Xtreme 4X4 X4278H-11 Hydraulic Hydraulic Camshaft for Big Block Chevy.

    Chevrolet 396-454 c.i. 8 CYL. 1965-1996. Hydraulic-Good top end power, needs good intake, headers and gears. Use with 9.5 compression and 2500+ stall. All COMP Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.

    • Improved throttle response & increased low & mid-range RPM horsepower for towing & off-road
    • Designed for use with common restrictive factory exhaust systems, including OEM exhaust manifolds

    Application

    1967-95 Chevy 396-454

    Guides & Documents

    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 11-243-4 Specifications

    KEY SPECS
    MFG. Part #11-243-4
    BrandCOMP Cams
    Camshaft TypeHydraulic Flat Tappet
    RPM Range2000-6200
    Intake Duration (.050" Lift)234
    Exhaust Duration (.050" Lift)244
    Lobe Separation111 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.564"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.570"
    Intake Duration278
    Exhaust Duration288
    Sold in QuantityEach
    Grind NumberX4 278H
    GTIN Code036584038597
    External Ignition Box RequiredNo
    Valve Springs RequiredYes

    Questions & Answers

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