Product Summary

396, 402, 427, 454, Hydraulic Flat Tappet Camshaft Type

    Key Specs

    Camshaft TypeHydraulic Flat Tappet
    Intake Duration (.050" Lift)224
    Exhaust Duration (.050" Lift)230
    RPM Range1600 to 5800
    Lobe Separation110 °

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    COMP Cams CL11-242-3 Details

    COMP Cams Xtreme Energy XE268H-10 Cam and Lifter Kit for Big Block Chevy.

    Chevrolet 396-454 c.i. 8 CYL. 1965-1996. Hydraulic-Good for Street Machines, slightly rough idle, stock converter. BIG BLOCK CHEVY Hydraulic CAM AND LIFTER KIT - Xtreme Energy: Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall.

    • Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
    • More vacuum allows an increase in duration for improved performance & assists power brakes
    • Excellent performance in street carbureted applications
    • Best performance with aftermarket intake manifolds, headers, lower gear ratios, etc.


    1967-95 Chevy 396-454

    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 CL11-242-3 Specifications

    MFG. Part #CL11-242-3
    BrandCOMP Cams
    Camshaft TypeHydraulic Flat Tappet
    Intake Duration (.050" Lift)224
    Exhaust Duration (.050" Lift)230
    RPM Range1600 to 5800
    Lobe Separation110 °
    Lifter TypeHydraulic Flat Tappet
    Intake Valve Lift w/ Rocker Arm Ratio0.515"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.52"
    Sold in QuantityKit
    Intake Duration268
    Exhaust Duration280
    GTIN Code036584025252
    Grind NumberCB XE268H-10
    External Ignition Box RequiredNo
    Valve Springs RequiredYes
    Valve Spring IncludedNo
    Lifters IncludedYes
    Retainers IncludedNo
    Locks IncludedNo
    Valve Stem Seals IncludedNo
    Timing Chain and Gears IncludedNo
    Assembly Lubricant IncludedYes
    Pushrods Included
    Rocker Arms IncludedNo
    Gaskets IncludedNo