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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK11-242-3
Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Small Kit Lift: .515" /.520" Duration: 268°/280° RPM Range: 1600-5800
$44895
Ships on 10/23/2026
Lowest Price GuaranteeChevy 396-454ci Big Block 1965-96
- Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Small Kit
- Good for Street Machines, slightly rough idle, stock converter
Installation Note: Stock springs cannot be used.
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall.
Lift: .515''/.520''
Duration: 268°/280°
RPM Range: 1600-5800
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 Length25.5
Weight19.575 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic flat tappet
Grind NumberCB XE268H-10
Exh. Duration Advertised (Deg)280
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.515
Int. Duration @ .050 In. (Deg)224
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,600-5,800
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.515 in (13.081 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)268
Lobe Separation (Deg)110
Rpm Range1600-5800
Lifter StyleHydraulic flat tappet
Advertised Duration268 int./280 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.52
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.515 int./0.520 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.52 in (13.208 mm)
Advertised Intake Duration268
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift230
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration280
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift224 int./230 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK11-242-3
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
