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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK51-233-4
Magnum 270H Hydraulic Flat Tappet Camshaft Small Kit Lift: .476" /.476" Duration: 270°/270° RPM Range: 1800-5800
$46195
Ships on 10/23/2026
Lowest Price GuaranteePontiac 265-455ci V-8 1955-81
- Magnum 270H Hydraulic Flat Tappet Camshaft Small Kit
- Cams Are Very Aggressive
- Designed For Performance Oriented Vehicles
- Deliver More Power Than Standard Camshafts
- 1 Year Limited Warranty
Pontiac; Super Duty; SD; SD455; HO; 455 HO; Trans-Am; Catalina; Firebird; Formula; 421; 455; 400; 428; 350; 265; 301; 370; 389; 301; 287; 317; 347; Ram Air; Ram Air IV; Ram Air III; Bonneville; Grand Prix; LeMans; Parisienne; Grand Am; Century; Regal;
Fair idle, good mid-range torque. Can use stock torque converter, best with 2000+ stall. Daily performance use.
Lift: .476''/.476"
Duration: 270°/270°
RPM Range: 1800-5800
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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.5
Package Length26.0
Weight21.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleHydraulic flat tappet
Grind NumberP 270H-10
Exh. Duration Advertised (Deg)270
Locks IncludedNo
Engine Make/SizePontiac 265-455
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.476
Int. Duration @ .050 In. (Deg)224
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,800-5,800
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.476 in (12.09 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)110
Rpm Range1800-5800
Lifter StyleHydraulic flat tappet
Advertised Duration270 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.476
Valve Springs IncludedNo
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.476 int./0.476 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.476 in (12.09 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift224
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration270
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift224 int./224 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK51-233-4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
