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Pontiac 265-455ci 8 cyl. 1955-1981
- Xtreme Energy Retro-Fit XR288HR Hydraulic Roller Camshaft & Lifter Kit
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 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;
Lift: .520''/.540''
Duration: 288°/294°
Lobe Separation Angle: 110°
RPM Range: 2200-6000
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height3.7
Package Width5.8
Package Length25.5
Weight15.65 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)242
Cam StyleHydraulic roller tappet
Grind NumberXR288HR
Exh. Duration Advertised (Deg)294
Locks IncludedNo
Engine Make/SizePontiac 265-455
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.52
Int. Duration @ .050 In. (Deg)236
Assembly Lubricant IncludedNo
Basic Operating Rpm Range2,200-6,000
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.52 in (13.208 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)288
Lobe Separation (Deg)110
Rpm Range2200-6000
Lifter StyleHydraulic roller
Advertised Duration288 int./294 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.54
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.520 int./0.540 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.54 in (13.716 mm)
Advertised Intake Duration288
Intake Duration At 050 Inch Lift236
Exhaust Duration At 050 Inch Lift242
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration294
Lifter TypeHydraulic Roller
Duration At 050 Inch Lift236 int./242 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL51-433-9
Package Qty1
Package TypeEA
No Questions
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Some parts are not legal for use in California or other states with similar laws / regulations
