COMP Cams

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#282MK5470211

COMP Cams MK54-702-11 Thumpr Master Cam Kit, LS GEN III, Stage 2

$1,353.95

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Factory Shipped


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Product Summary

Hydraulic Roller Tappet Camshaft Type, Lifters Included

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    Key Specs

    Camshaft TypeHydraulic Roller Tappet
    Intake Duration (.050" Lift)226
    Exhaust Duration (.050" Lift)237
    RPM Range1800 to 6500
    Lobe Separation113 °
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    COMP Cams MK54-702-11 Details

    The Stage 2 Thumpr Master Cam Kit for LS GEN III 5.3-6.0L provides an awesome idle lope in modified 5.3L & 6.0L trucks. Includes lifters, timing set, pushrods, LS6+ springs, retainers, locks, spring seats and valve seals.

    • For Stage 2 Thumpr Master Cam Kit for GEN III 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: 226
    • Exhaust Duration at .050 inch Lift: 237
    • Advertised Intake Duration: 280
    • Advertised Exhaust Duration: 299
    • Lobe Separation: 113
    • Intake Valve Lift: 0.663
    • Exhaust Valve Lift: 0.638
    • Lifters Included: Yes
    • 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
    • Stage: 2
    • Timing Set Included: Yes
    • Valve Seals Included: Yes
    • Valve Spring Seats Included: Yes
    • Estimated Horsepower Gain with Kit: 81

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    Warranty (COMP Cams)

    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.
    CA Prop 65
    CARB warning

    COMP Cams MK54-702-11 Specifications

    KEY SPECS
    MFG. Part #MK54-702-11
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    Intake Duration (.050" Lift)226
    Exhaust Duration (.050" Lift)237
    RPM Range1800 to 6500
    Lobe Separation113 °
    Lifter TypeHydraulic Roller
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.541"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.539"
    Computer Controlled CompatibleYes
    Sold in QuantityKit
    Intake Duration280
    Exhaust Duration299
    GTIN Code00036584387619
    Valve Springs RequiredNo
    Valve Spring IncludedYes
    Lifters IncludedYes
    Retainers IncludedYes
    Locks IncludedYes
    Valve Stem Seals IncludedYes
    Timing Chain and Gears IncludedYes
    Assembly Lubricant IncludedNo
    Pushrods IncludedYes
    Rocker Arms IncludedNo
    Gaskets IncludedNo
    Gear Attachment3-Bolt

    Questions & Answers

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    Fitment

    • GM LM4

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    • GM LM7

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    • GM L59

    • GM LM7

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    • GM LQ4

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