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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-744-9
Comp Cams Marine Mechanical Roller Camshafts
$50595
Ships on 09/10/2026
Lowest Price GuaranteeBig Block Chevrolet 396-454ci 1965-96
- Mechanical Roller Marine Camshaft
Big Block Chevy 396-454ci
Lift: .670"/.670"
Duration: 295°/305°
Lobe Separation Angle: 110°
RPM Range: 4200-7000
Jet boat with B impeller, flat, hydro. River race, Bracket.
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Jet boat with B impeller, flat, hydro. River race, bracket.
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 Height2.8
Package Width2.9
Package Length24.2
Weight10.8 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)272
Cam StyleMechanical roller tappet
Grind Number295DR-10
Exh. Duration Advertised (Deg)305
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.67
Int. Duration @ .050 In. (Deg)262
Basic Operating Rpm Range4,200-7,000
Intake Valve Lash0.028 in (0.711 mm)
Intake Valve Lift0.67 in (17.018 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)295
Lobe Separation (Deg)110
Rpm Range4200-7000
Advertised Duration295 int./305 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.67
UsageMarine
Valve Lift With Factory Rocker Arm Ratio0.670 int./0.670 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lash0.03 in (0.762 mm)
Exhaust Valve Lift0.67 in (17.018 mm)
Advertised Intake Duration295
Intake Duration At 050 Inch Lift262
Exhaust Duration At 050 Inch Lift272
Advertised Exhaust Duration305
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift262 int./272 exh.
Valve Springs RequiredYes
Vendor Part Number11-744-9
Package Qty1
Package TypeEA
No Questions
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Some parts are not legal for use in California or other states with similar laws / regulations
