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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK11-679-5
Xtreme Energy Mechanical Flat Camshaft Small Kit Lift: .598"/.598"
$43595
Ships on 09/14/2026
Lowest Price GuaranteeChevy Big Block 396-454ci 1965-96
- Xtreme Energy Mechanical Flat Camshaft Small Kit
- Lift: .598"/.598"
- Duration: 290°/298°
- Lobe Separation Angle: 110°
- RPM Range 2800-7200
- Pro Street/Bracket, needs good intake, headers, gear & 3500+ stall
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
Pro Street/bracket, needs good intake, headers, gear and 3500+ stall.
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.
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Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.25
Package Length25.5
Weight22.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)260
Cam StyleMechanical flat tappet
Grind NumberCB XS290S-10
Exh. Duration Advertised (Deg)298
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.598
Int. Duration @ .050 In. (Deg)252
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,800-7,200
Pushrods IncludedNo
Gaskets IncludedNo
Intake Valve Lash0.016 in (0.406 mm)
Rocker Arms IncludedNo
Intake Valve Lift0.598 in (15.189 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)290
Lobe Separation (Deg)110
Rpm Range2800-7200
Lifter StyleMechanical flat tappet
Advertised Duration290 int./298 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.598
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.598 int./0.598 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lash0.016 in (0.406 mm)
Exhaust Valve Lift0.598 in (15.189 mm)
Advertised Intake Duration290
Intake Duration At 050 Inch Lift252
Exhaust Duration At 050 Inch Lift260
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration298
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift252 int./260 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK11-679-5
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
