Product Summary

Hydraulic Roller Tappet Camshaft Type

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    Key Specs

    Camshaft TypeHydraulic Roller Tappet
    RPM Range1800-5800
    Intake Duration (.050" Lift)224
    Exhaust Duration (.050" Lift)230
    Lobe Separation112 °
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    COMP Cams 07-503-8 Details

    COMP Cams Xtreme Energy XE276HR-12 Camshaft for LT1 Chevy.

    Xtreme Energy. Best cam for modified LT1, better exhaust & 2000+ converter. Requires custom tuning. Hydraulic Roller - Xtreme Energy: Best cam for modified LT1, better exhaust and 2000+ converter. Requires custom tuning.

    • 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.

    Application

    1995-97 Chevy 350

    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 07-503-8 Specifications

    KEY SPECS
    MFG. Part #07-503-8
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    RPM Range1800-5800
    Intake Duration (.050" Lift)224
    Exhaust Duration (.050" Lift)230
    Lobe Separation112 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.503"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.510"
    Intake Duration276
    Exhaust Duration281
    Sold in QuantityEach
    Grind NumberLT1 XR276HR-12
    GTIN Code036584063254
    External Ignition Box RequiredNo
    Valve Springs RequiredYes

    Questions & Answers

    1 Question • 1 Answer

    What springs are recommended for this cam in a 1997 firebird 5.7 LT1?

    by Dennis Huffstickler

    • 10 months ago

    1 answer

    1 of 1 questions shown

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