Product Summary

L99, Hydraulic Roller Tappet Camshaft Type

    Key Specs

    MFG. Part #189-303-13
    BrandCOMP Cams

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    Highest average HP L99 cam. Requires 3500 RPM converter, headers and air induction mods. Valve train stable to 7500 RPM w/ CK & MK Kits. AFM delete & VVT limiter.

    • For Stage 2 LST Cam for L99 Camaro w/ Automatic Transmission and VVT
    • Cam Type: Hydraulic Roller
    • Basic Operating RPM Range: 2,700-7,400
    • Intake Duration at .050 Inch Lift: 237
    • Exhaust Duration at .050 inch Lift: 248
    • Advertised Intake Duration: 292
    • Advertised Exhaust Duration: 297
    • Lobe Separation: 113
    • Intake Valve Lift: 0.663
    • Exhaust Valve Lift: 0.638
    • Lifters Included: No
    • Valve Springs Required: Yes
    • Assembly Lubricant Included: No
    • Camshaft Gear Attachment: 1-Bolt
    • Camshaft Material: Billet Steel
    • Lifter Style: Hydraulic Roller
    • Stage: 2
    • Master Kit Upgrade: MK189-303-13
    • Recommended Upgraded Stock Rocker Arms: 1478-16
    • Recommended Max-Lift BSR Shaft Rocker System: 1982-16
    • Recommended Cam Install Kit: 5623

    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.


    MFG. Part #189-303-13
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    RPM Range2700-7400
    Intake Duration292
    Exhaust Duration297
    Intake Duration (.050" Lift)237
    Exhaust Duration (.050" Lift)248
    Intake Valve Lift w/ Rocker Arm Ratio0.663"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.638"
    Lobe Separation113 °
    Material TypeBillet Steel
    Computer Controlled CompatibleYes
    GTIN Code00036584386452
    Valve Springs RequiredYes
    Gear Attachment3-Bolt
    Sold in QuantityEach
    NotesFits models with automatic transmission and VVT limiter. Requires 3500 rpm converter, headers, air induction modifications, and AFM delete