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Product Discontinued
COMP CAMSPART NUMBER: 249-11-720-9
Drag Race Mechanical Roller Camshaft Lift .748"/.714" Duration 321/322 RPM Range 5500-8500
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Chevy 396-454ci Big Block 1965-96
- Drag Race Mechanical Roller Camshaft
Lift .748"/.714"
Duration 321/322
RPM Range 5500-8500
Mechanical Roller-Super Comp. Best in light car, 5500+ stall, 454 or larger.
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Super Comp. Best in light car, 5500+ stall, 454+c.i.
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 Width2.87
Package Length24.5
Weight10.5 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)286
Cam StyleMechanical roller tappet
Grind NumberCB 321C-R10
Exh. Duration Advertised (Deg)322-3
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.748
Int. Duration @ .050 In. (Deg)286
Basic Operating Rpm Range5,500-8,500
Intake Valve Lash0.028 in (0.711 mm)
Intake Valve Lift0.748 in (18.999 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)321-6
Lobe Separation (Deg)110
Rpm Range5500-8500
Advertised Duration321 int./322 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.714
UsageStrip
Valve Lift With Factory Rocker Arm Ratio0.748 int./0.714 exh.
QuantitySold individually
Exhaust Valve Lash0.03 in (0.762 mm)
Exhaust Valve Lift0.714 in (18.136 mm)
Advertised Intake Duration321
Intake Duration At 050 Inch Lift286
Exhaust Duration At 050 Inch Lift286
Advertised Exhaust Duration322
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift286 int./286 exh.
Valve Springs RequiredYes
Vendor Part Number11-720-9
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
