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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-754-14
Drag Race Mechanical Roller Camshaft 4/7 Swap Firing Order Lift .846"/.810" Duration 318/352 RPM Range 5200-9200
$60395
Ships on Sep 15, 2026
Lowest Price GuaranteeChevy 396-454ci Big Block 1965-96 4&7 Swap Firing Order
- Drag Race Mechanical Roller Camshaft
4/7 Swap Firing Order
Lift .846"/.810"
Duration 318/352
RPM Range 5200-9200
Mechanical Roller-Very large cubic in and Nitrous applications
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Nitrous and blown race applications.
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 Height2.9
Package Width3.0
Package Length24.5
Weight10.15 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)312
Cam StyleMechanical roller tappet
Grind NumberCB 47S 318RXH-16
Exh. Duration Advertised (Deg)352
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.846
Int. Duration @ .050 In. (Deg)285
Basic Operating Rpm Range5,200-9,200
Intake Valve Lash0.024 in (0.61 mm)
Intake Valve Lift0.846 in (21.488 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)318
Lobe Separation (Deg)116
Rpm Range5200-9200
Advertised Duration318 int./352 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.81
UsageStrip
Valve Lift With Factory Rocker Arm Ratio0.846 int./0.810 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lash0.026 in (0.66 mm)
Exhaust Valve Lift0.81 in (20.574 mm)
Advertised Intake Duration318
Intake Duration At 050 Inch Lift285
Exhaust Duration At 050 Inch Lift312
Advertised Exhaust Duration352
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift285 int./312 exh.
Valve Springs RequiredYes
Vendor Part Number11-754-14
Package Qty1
Package TypeEA
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