Product Summary

Hydraulic Flat Tappet Camshaft Type

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    Key Specs

    Camshaft TypeHydraulic Flat Tappet
    RPM Range1600-5800
    Intake Duration (.050" Lift)226
    Exhaust Duration (.050" Lift)234
    Lobe Separation111 °
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    Need To Know

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    Return Policy

    COMP Cams 11-239-3 Details

    COMP Cams Xtreme 4X4 X4270H-11 Hydraulic Camshaft for Big Block Chevy.

    Chevrolet 396-454 c.i. 8 CYL. 1965-1996. Hydraulic-Best with improved intake manifold, needs headers and 3.55 - 3.90 gears and 2000+ 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 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.

    COMP Cams 11-239-3 Specifications

    KEY SPECS
    MFG. Part #11-239-3
    BrandCOMP Cams
    Camshaft TypeHydraulic Flat Tappet
    RPM Range1600-5800
    Intake Duration (.050" Lift)226
    Exhaust Duration (.050" Lift)234
    Lobe Separation111 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.544"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.564"
    Intake Duration270
    Exhaust Duration278
    Sold in QuantityEach
    Grind NumberCB X4 270H-11
    GTIN Code036584038580
    External Ignition Box RequiredNo
    Valve Springs RequiredYes

    Questions & Answers

    Fitment

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