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Product Summary

L20, LR4, LY2, Hydraulic Roller Tappet Camshaft Type

    Key Specs

    MFG. Part #MK54-331-58
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet

    Need To Know

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    COMP Cams MK54-331-58 Details

    Perfect choice for 4.8L with race style, low back pressure turbo systems. 7400 RPM stability with CK & MK Kits. 58x Applications.

    Kit includes:

    • #54-331-11 Camshaft
    • #875-16 Lifters
    • #7106 Timing Set
    • #7639-16 Pushrods
    • #26926-16 Dual Valve Springs
    • #1779-16 Tool Steel Retainers
    • #623-16 Locks
    • #4695-16 Spring Seats
    • #511-16 Seals

    Specifications:

    • Grind Number: 283MGH15
    • Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
    • RPM Operating Range: 2,500-7,400
    • Cam Type: Hydraulic Roller
    • Lifter Style: Hydraulic Roller
    • Camshaft Series: Low Shock Technology
    • Stage: 2
    • Camshaft Gear Attachment: 3-Bolt
    • Usage: Street/Performance, Street/Strip
    • Valve Springs Required: Yes
    • Camshaft Material: Billet Steel
    • Advertised Intake Duration: 283
    • Advertised Exhaust Duration: 291
    • Intake Duration at .050 Inch Lift: 225
    • Exhaust Duration at .050 Inch Lift: 233
    • Intake Valve Lift: 0.612
    • Exhaust Valve Lift: 0.612
    • Lobe Separation: 115

    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 MK54-331-58 Specifications

    KEY SPECS
    MFG. Part #MK54-331-58
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    GENERAL
    Intake Duration283
    Exhaust Duration291
    RPM Range2500 to 7400
    Lobe Separation115 °
    Intake Duration (.050" Lift)225
    Exhaust Duration (.050" Lift)233
    GTIN Code036584407737
    Intake Valve Lift w/ Rocker Arm Ratio0.612"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.612"
    Computer Controlled CompatibleYes
    Valve Springs RequiredYes
    Valve Spring IncludedYes
    Lifter TypeHydraulic Roller
    Lifters IncludedYes
    Retainers IncludedYes
    Locks IncludedYes
    Valve Stem Seals IncludedYes
    Timing Chain and Gears IncludedYes
    Timing Chain StyleDouble Roller
    Assembly Lubricant IncludedNo
    Pushrods IncludedYes
    Rocker Arms IncludedNo
    Gaskets IncludedNo
    Gear Attachment3-Bolt
    Sold in QuantityKit