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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-750-14
Drag Race Mechanical Roller Camshaft 4/7 Swap Firing Order Lift .800"/.800" Duration 310/330 RPM Range 4300-8000
$60395
Ships on 09/15/2026
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 .800"/.800"
Duration 310/330
RPM Range 4300-8000
*Note:Has a 4 and 7 firing order swap.(18736542)
**Note: Requires upgraded gear, thrust button & wear plate.
396-454ci, Lower RPM bracket with good heads.
| Operating Range: | 4300-8000 RPM |
| Duration Advertised: | 310° Intake / 330° Exhaust |
| Duration @ .050' Lift: | 277° Intake / 292° Exhaust |
| Valve Lift w/1.5 Rockers: | .800' Intake / .800' Exhaust |
| Valve Setting: | .026' Intake / .028' Exhaust |
| Lobe Separation Angle: | 114° |
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Lower RPM bracket with good heads.
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
BrandCOMP CAMS
Package Height2.7
Package Width3.0
Package Length24.3
Weight9.2 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)292
Cam StyleMechanical roller tappet
Grind Number47S 310RXD-14
Exh. Duration Advertised (Deg)330
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.8
Int. Duration @ .050 In. (Deg)277
Basic Operating Rpm Range4,300-8,000
Intake Valve Lash0.026 in (0.66 mm)
Intake Valve Lift0.8 in (20.32 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)310
Lobe Separation (Deg)114
Rpm Range4300-8000
Advertised Duration310 int./330 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.8
UsageStrip
Valve Lift With Factory Rocker Arm Ratio0.800 int./0.800 exh.
QuantitySold individually
Exhaust Valve Lash0.028 in (0.711 mm)
Exhaust Valve Lift0.8 in (20.32 mm)
Advertised Intake Duration310
Intake Duration At 050 Inch Lift277
Exhaust Duration At 050 Inch Lift292
Advertised Exhaust Duration330
Lifter TypeMechanical Roller
Duration At 050 Inch Lift277 int./292 exh.
Valve Springs RequiredYes
Vendor Part Number11-750-14
Package Qty1
Package TypeEA
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