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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK11-217-4
Comp Cams Magnum Mechanical Flat Tappet Camshafts
$41895
Ships on 09/11/2026
Lowest Price GuaranteeChevy 396-454ci Big Block 1965-96
- Magnum 270S Mechanical Flat Tappet Camshaft Small Kit
Lift: .530"/.530"
Duration: 270°/270°
Lobe Separation Angle: 110°
RPM Range: 1800-5800
Good for everyday driving. Works well with headers. In 396-402 use slightly lower gears. Slightly rough idle.
| Operating Range: | 1800-5800 RPM |
| Duration Advertised: | 270° Intake / 270° Exhaust |
| Duration @ .050' Lift: | 224° Intake / 224° Exhaust |
| Valve Lift: | .530' Intake / .530' Exhaust |
| Valve Setting: | .022' Intake / .022' Exhaust |
| Lobe Separation Angle: | 110° |
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 everyday driving. Works well with headers. In 396-402c.i. use slightly lower gears. Slightly rough idle.
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 Width10.5
Package Length26.0
Weight22.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleMechanical flat tappet
Grind NumberCB 270S-10
Exh. Duration Advertised (Deg)270
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.53
Int. Duration @ .050 In. (Deg)224
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,800-5,800
Pushrods IncludedNo
Gaskets IncludedNo
Intake Valve Lash0.022 in (0.559 mm)
Rocker Arms IncludedNo
Intake Valve Lift0.53 in (13.462 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)110
Rpm Range1800-5800
Lifter StyleMechanical flat tappet
Advertised Duration270 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.53
Valve Springs IncludedNo
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.530 int./0.530 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lash0.022 in (0.559 mm)
Exhaust Valve Lift0.53 in (13.462 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift224
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration270
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift224 int./224 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK11-217-4
Package Qty1
Package TypeEA
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