Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Lift: .570"/.554"
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COMP CAMSPART NUMBER: 249-11-602-8

Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Lift: .570"/.554"

$54995
2 left in stock
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Chevy 396-454 ci Big Block 1967-96 Non-Factory Roller Block
  • Big Mutha Thumpr
    • Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft
    • Lift: .570"/.554"
    • Duration: 299°/319°
    • Lobe Separation Angle: 107°
    • RPM Range: 2300-6100

      Valve Setting: Intake - Hyd, Exhaust - Hyd
      RPM Operating Range: 2500 to 6100
      Cam Grind Number: 299THR7
      Duration Advertised: Intake - 299, Exhaust - 319
      Duration @ .050': Intake - 243, Exhaust - 257
      Valve Lift: Intake - .570, Exhaust - .554
      Lobe Sep. Angle: 107°

      Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572


      Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    Part TypeCamshaft
    BrandCOMP CAMS
    Package Height2.75
    Package Width3.0
    Package Length24.5
    Weight10.95 PG
    Part CategoryPerformance Parts
    Exh. Duration @ .050 In. (Deg)257
    Cam StyleHydraulic roller tappet
    Grind Number299THR7
    Exh. Duration Advertised (Deg)319
    Engine Make/SizeChevy Big Block (396-454)
    Intake Valve Lift With Factory Rocker Arm Ratio (I0.57
    Int. Duration @ .050 In. (Deg)243
    Basic Operating Rpm Range2,500-6,100
    Intake Valve Lift0.57 in (14.478 mm)
    Computer-Controlled CompatibleNo
    Int. Duration Advertised (Deg)299
    Lobe Separation (Deg)107
    Rpm Range2500-6100
    Advertised Duration299 int./319 exh.
    Exhaust Valve Lift With Factory Rocker Arm Ratio (0.554
    UsageStreet/Strip
    Valve Lift With Factory Rocker Arm Ratio0.570 int./0.554 exh.
    QuantitySold individually
    Exhaust Valve Lift0.554 in (14.072 mm)
    Advertised Intake Duration299
    Intake Duration At 050 Inch Lift243
    Exhaust Duration At 050 Inch Lift257
    Advertised Exhaust Duration319
    Lifter TypeHydraulic Roller Retrofit
    Part FitmentSemi Universal
    Duration At 050 Inch Lift243 int./257 exh.
    Valve Springs RequiredYes
    Vendor Part Number11-602-8
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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