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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-409-8
Nitrous HP Hydraulic Roller Camshaft Chevy Big Block 396-454ci 1965-96 Retro-Fit Lift: .537"/.547"
$57795
Ships on Sep 04, 2026
Lowest Price GuaranteeChevy Big Block 396-454ci 1965-96Retro-Fit For Non-Factory Roller Engines
- Nitrous HP Hydraulic Roller Camshaft
- Lift: .537"/.547"
- Duration: 273°/292°
- Lobe Separation Angle: 113°
- RPM Range: 1800-5800
Hydraulic Roller-Street Machines with 125+ nitrous kit 2200+ stall and lower gears. Chevrolet 396-454 c.i. 8 CYL. 1965-1996Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Street machines with 125+ hp nitrous kit, 2200+ stall and lower gears.
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 Height2.75
Package Width3.0
Package Length24.5
Weight10.7 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)236
Cam StyleHydraulic roller tappet
Grind NumberCB NX273HR-13
Exh. Duration Advertised (Deg)292
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.537
Int. Duration @ .050 In. (Deg)224
Basic Operating Rpm Range1,800-5,800
Intake Valve Lift0.537 in (13.64 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)273
Lobe Separation (Deg)113
Rpm Range1800-5800
Advertised Duration273 int./292 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.547
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.537 int./0.547 exh.
QuantitySold individually
Exhaust Valve Lift0.547 in (13.894 mm)
Advertised Intake Duration273
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift236
Advertised Exhaust Duration292
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift224 int./236 exh.
Valve Springs RequiredYes
Vendor Part Number11-409-8
Package Qty1
Package TypeEA
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