Comp Cams 'Magnum' Mechanical Flat Tappet Camshafts
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-K11-607-5

Comp Cams 'Magnum' Mechanical Flat Tappet Camshafts

$77695
ShippingShips on 09/10/2026
Lowest PriceLowest Price Guarantee

Chevy 396-454ci Big Block 1965-96
  • Marine
    • Magnum Marine 320B Mechanical Flat Tappet Camshaft Complete Kit
      Lift: .638"/.656"
      Duration: 320°/324°
      Lobe Separtation Angle: 110°
      RPM Range: 4500-7500

    • Complete Camshaft Kit
    • 1 Year Limited Warranty

      265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10


      For use in large engine. Flat or hydro. Use tunnel ram. 11.5:1+ compression.

    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 Kit
    BrandCOMP CAMS
    Package Height5.0
    Package Width10.25
    Package Length25.5
    Weight29.0 PG
    Part CategoryPerformance Parts
    Exh. Duration @ .050 In. (Deg)286
    Cam StyleMechanical flat tappet
    Grind Number320B
    Exh. Duration Advertised (Deg)324
    Locks IncludedYes
    Engine Make/SizeChevy Big Block (396-454)
    Retainers IncludedYes
    Intake Valve Lift With Factory Rocker Arm Ratio (I0.638
    Int. Duration @ .050 In. (Deg)280
    Assembly Lubricant IncludedYes
    Basic Operating Rpm Range4,500-7,500
    Pushrods IncludedNo
    Gaskets IncludedNo
    Intake Valve Lash0.028 in (0.711 mm)
    Rocker Arms IncludedNo
    Intake Valve Lift0.638 in (16.205 mm)
    Computer-Controlled CompatibleNo
    Int. Duration Advertised (Deg)320
    Lobe Separation (Deg)110
    Rpm Range4500-7500
    Lifter StyleMechanical flat tappet
    Advertised Duration320 int./324 exh.
    Exhaust Valve Lift With Factory Rocker Arm Ratio (0.656
    Valve Springs IncludedYes
    UsageMarine
    Valve Lift With Factory Rocker Arm Ratio0.638 int./0.656 exh.
    Camshaft Gear Attachment3-bolt
    QuantitySold as a kit
    Valve Stem Seals IncludedYes
    Exhaust Valve Lash0.03 in (0.762 mm)
    Exhaust Valve Lift0.656 in (16.662 mm)
    Advertised Intake Duration320
    Intake Duration At 050 Inch Lift280
    Exhaust Duration At 050 Inch Lift286
    Timing Chain StyleDouble non-roller
    Timing Chain And Gears IncludedYes
    Advertised Exhaust Duration324
    Lifter TypeMechanical Flat Tappet
    Part FitmentSemi Universal
    Duration At 050 Inch Lift280 int./286 exh.
    Valve Springs RequiredNo
    Lifters IncludedYes
    Vendor Part NumberK11-607-5
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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