Magnum 280H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift: .520" /.520" Duration: 280°/280° RPM Range: 2000-6000
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-CL11-208-3

Magnum 280H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift: .520" /.520" Duration: 280°/280° RPM Range: 2000-6000

$38695
ShippingShips on 09/28/2026
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Chevy 396-454ci Big Block 1965-96
    Magnum 280H Hydraulic Flat Tappet Camshaft & Lifter Kit
    Lift: .520''/.520"
    Duration: 280°/280°
    RPM Range: 2000-6000


    *Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16' wide x 7/64' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

    Great for street machines. Use headers and 9:1 compression. In 396-402 use 2500-stall converter, lower gears. Rough idle.

    Operating Range:2000-6000 RPM
    Duration Advertised:280° Intake / 280° Exhaust
    Duration @ .050' Lift:230° Intake / 230° Exhaust
    Valve Lift w/1.7 Rockers:.520' Intake / .520' Exhaust
    Lobe Separation Angle:110°

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


    Great for street machines. Use headers and 9:1+ compression. In 396-402c.i. use 2500+ stall, lower gears. 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 Kit
BrandCOMP CAMS
Package Height3.1
Package Width5.5
Package Length25.3
Weight15.2 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic flat tappet
Grind NumberCB 280H-10
Exh. Duration Advertised (Deg)280
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-502)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.52
Int. Duration @ .050 In. (Deg)230
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,000-6,000
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.52 in (13.208 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)280
Lobe Separation (Deg)110
Rpm Range2000-6000
Lifter StyleHydraulic flat tappet
Advertised Duration280 int./280 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.52
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.520 int./0.520 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.52 in (13.208 mm)
Advertised Intake Duration280
Intake Duration At 050 Inch Lift230
Exhaust Duration At 050 Inch Lift230
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration280
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift230 int./230 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL11-208-3
Package Qty1
Package TypeEA
No Questions
No Reviews

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