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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK21-237-4
Magnum 280H Hydraulic Flat Tappet Camshaft Small Kit Lift: .480"/.480" Duration: 280/280 RPM Range: 2500-5800
$45995
Ships on 10/23/2026
Lowest Price GuaranteeChrysler 383-440ci 1959-1980
- Magnum 280H Hydraulic Flat Tappet Camshaft Small Kit
- Hydraulic-For 9:1 to 10:1 compression
- 383 needs 2500 stall
- 440 needs 2000 stall
- Use 700-800 CFM carburetor headers 3.91+ gear
273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
For 9:1-10:1 compression. 383 needs 2500 stall. 440 needs 2000+ stall. Use 700-800 CFM carburetor, headers, 3.91+ gears.
Lift: .480"/.480"
Duration: 280/280
RPM Range: 2500-5800
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.
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Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.5
Package Length26.0
Weight20.5 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic flat tappet
Grind NumberCRB 280H-10
Exh. Duration Advertised (Deg)280
Locks IncludedNo
Engine Make/SizeMopar 383-440
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.48
Int. Duration @ .050 In. (Deg)230
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,500-5,800
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.48 in (12.192 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)280
Lobe Separation (Deg)110
Rpm Range2500-5800
Lifter StyleHydraulic flat tappet
Advertised Duration280 int./280 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.48
Valve Springs IncludedNo
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.480 int./0.480 exh.
Camshaft Gear Attachment1-bolt
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.48 in (12.192 mm)
Advertised Intake Duration280
Intake Duration At 050 Inch Lift231
Exhaust Duration At 050 Inch Lift231
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration280
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift231 int./231 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK21-237-4
Package Qty1
Package TypeEA
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