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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK42-225-4
Xtreme Energy 284H Hydraulic Flat Tappet Camshaft Small Kit Lift: .541" /.544" Duration: 284°/296° RPM Range: 2300-6500
$46395
Ships on 10/23/2026
Lowest Price GuaranteeOldsmobile 260-455 c.i. 8 cyl. 1967-1990
- Xtreme Energy 284H Hydraulic Flat Tappet Camshaft Small Kit
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 1 Year Limited Warranty
Olds; Oldsmobile; Cutlass; Cutlass Supreme; 98; Calais; Ciera; Custom Cruiser; Starfire; Firenza; 88; Rocket; Rocket 88; Vista Cruiser; Delta 88; 260; 442; 307; 350; 403; 400; 425; 455
Street/strip, needs 9:1+ compression. 2800+ stall, headers, gears, rough idle.
Lift: .541''/.544''
Duration: 284°/296°
RPM Range: 2300-6500
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 Width10.4
Package Length25.4
Weight17.8 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)246
Cam StyleHydraulic flat tappet
Grind NumberOL XE284H-10
Exh. Duration Advertised (Deg)296
Locks IncludedNo
Engine Make/SizeOlds 260-455
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.541
Int. Duration @ .050 In. (Deg)240
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,300-6,500
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.541 in (13.741 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)284
Lobe Separation (Deg)110
Rpm Range2300-6500
Lifter StyleHydraulic flat tappet
Advertised Duration284 int./296 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.544
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.541 int./0.544 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.544 in (13.818 mm)
Advertised Intake Duration284
Intake Duration At 050 Inch Lift240
Exhaust Duration At 050 Inch Lift246
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration296
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift240 int./246 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK42-225-4
Package Qty1
Package TypeEA
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