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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-414-8
Nitrous HP Hydraulic Roller Camshaft Chevy Big Block 396-454ci 1965-96 Retro-Fit Lift: .566"/.575"
$57795
Ships on Sep 15, 2026
Lowest Price GuaranteeChevy Big Block 396-454ci 1965-96Retro-Fit For Non-Factory Roller Engines
- Nitrous HP Hydraulic Roller Camshaft
- Lift: .566"/.575"
- Duration: 298°/310°
- Lobe Separation Angle: 113°
- RPM Range: 2400-6500
200+ nitrous system, 671 or larger supercharger, 9.5:1+ compression, 2800+ stall.Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
200+ hp nitrous system, 671 or larger supercharger, 9.5:1+ compression, 2800+ stall.
Chevy Big Block 396-454ci 1965-96
Retro-Fit
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
BrandCOMP CAMS
Package Height4.0
Package Width4.0
Package Length24.25
Weight10.85 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)254
Cam StyleHydraulic roller tappet
Grind NumberCB NX298HR-13
Exh. Duration Advertised (Deg)310
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.566
Int. Duration @ .050 In. (Deg)242
Basic Operating Rpm Range2,400-6,500
Intake Valve Lift0.566 in (14.376 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)298
Lobe Separation (Deg)113
Rpm Range2400-6500
Advertised Duration298 int./310 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.575
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.567 int./0.579 exh.
QuantitySold individually
Exhaust Valve Lift0.575 in (14.605 mm)
Advertised Intake Duration298
Intake Duration At 050 Inch Lift242
Exhaust Duration At 050 Inch Lift254
Advertised Exhaust Duration310
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift242 int./254 exh.
Valve Springs RequiredYes
Vendor Part Number11-414-8
Package Qty1
Package TypeEA
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