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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K51-229-3
High Energy 252H Hydraulic Flat Tappet Camshaft Complete Kit Lift: .425" /.425" Duration: 252°/252° RPM Range: 800-4800
$58495
Ships on 10/21/2026
Lowest Price GuaranteePontiac 265-455ci V-8 1955-81
- High Energy 252H Hydraulic Flat Tappet Camshaft Complete Kit
- High Torque Cams
- For Street Applications w/Lower Compression Ratios
- Can Be Used w/Most Stock Components
- 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;
Need Info
Lift: .425''/.425"
Duration: 252°/252°
RPM Range: 800-4800
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 Height5.2
Package Width10.4
Package Length25.2
Weight23.1 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)206
Cam StyleHydraulic flat tappet
Grind Number252H
Exh. Duration Advertised (Deg)252
Locks IncludedYes
Engine Make/SizePontiac 265-455
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.425
Int. Duration @ .050 In. (Deg)206
Assembly Lubricant IncludedYes
Basic Operating Rpm Range800-4,800
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.425 in (10.795 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)252
Lobe Separation (Deg)110
Rpm Range800-4800
Lifter StyleHydraulic flat tappet
Advertised Duration252 int./252 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.425
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.425 int./0.425 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.425 in (10.795 mm)
Advertised Intake Duration252
Outside Diameter Of Outer Spring1.384 in (35.2 mm)
Intake Duration At 050 Inch Lift206
Exhaust Duration At 050 Inch Lift206
Timing Chain StyleLink belt
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration252
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift206 int./206 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK51-229-3
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
