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Product Summary

L20, L76, L92, LC9, LH6, LH8, LMG, LS2, LY2, LY5, LY6

    Key Specs

    MFG. Part #CK54-703-11
    BrandCOMP Cams

    Need To Know

    This Product Will Ship Free

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    Return Policy

    Details

    The Stage 2 Thumpr Cam Kit for LS GEN IV 5.3-6.0L provides an awesome idle lope in modified 5.3L & 6.0L trucks. Includes pushrods, dual springs, retainers, locks, spring seats and valve seals.

    • For Stage 2 Thumpr Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks
    • Camshaft Series: Thumpr NSR (No Springs Required)
    • Cam Type: Hydraulic Roller
    • Basic Operating RPM Range: 1,800-6,600
    • Intake Duration at .050 Inch Lift: 227
    • Exhaust Duration at .050 inch Lift: 237
    • Advertised Intake Duration: 282
    • Advertised Exhaust Duration: 299
    • Lobe Separation: 113
    • Intake Valve Lift: 0.614
    • Exhaust Valve Lift: 0.612
    • Lifters Included: No
    • Valve Springs Included: Yes
    • Assembly Lubricant Included: No
    • Camshaft Gear Attachment: 3-Bolt
    • Camshaft Material: Billet Steel
    • Lifter Style: Hydraulic Roller
    • Retainers Included: Yes
    • Locks Included: Yes
    • Pushrods Included: Yes
    • Gaskets Included: No
    • Timing Set Included: No
    • Valve Seals Included: Yes
    • Valve Spring Seats Included: Yes
    • Estimated Horsepower Gain with Kit: 89

    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.

    Specifications

    KEY SPECS
    MFG. Part #CK54-703-11
    BrandCOMP Cams
    GENERAL
    Camshaft TypeHydraulic Roller Tappet
    RPM Range1800-6500
    Intake Duration282
    Exhaust Duration299
    Intake Duration (.050" Lift)227
    Exhaust Duration (.050" Lift)237
    Intake Valve Lift w/ Rocker Arm Ratio0.614"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.612"
    Lobe Separation113 °
    Material TypeBillet Steel
    Computer Controlled CompatibleYes
    GTIN Code00036584387633
    Valve Springs RequiredNo
    Valve Spring IncludedYes
    Retainers IncludedYes
    Locks IncludedYes
    Valve Stem Seals IncludedYes
    Timing Chain and Gears IncludedNo
    Assembly Lubricant IncludedNo
    Pushrods IncludedYes
    Rocker Arms IncludedNo
    Gaskets IncludedNo
    Gear Attachment3-Bolt
    Sold in QuantityEach