Drag Race Mechanical Roller Camshaft Lift .748"/.714" Duration 313/322 RPM Range 4500-7300
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-11-734-9

Drag Race Mechanical Roller Camshaft Lift .748"/.714" Duration 313/322 RPM Range 4500-7300

$55895
1 left in stock
ShippingShips on Sep 14, 2026
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Chevy 396-454ci Big Block 1965-96
    Drag Race Mechanical Roller Camshaft
    Lift .748"/.714"
    Duration 313/322
    RPM Range 4500-7300

    *Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16' wide x 7/64' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

    ** Note: Requires upgraded gear, thrust button & wear plate.

    Super Street / Super Gas, 427-468ci, 5000 stall converter, 2500-3000 lb. car.

    Operating Range:4500-7300 RPM
    Duration Advertised:313° Intake / 322° Exhaust
    Duration @ .050' Lift:278° Intake / 286° Exhaust
    Valve Lift w/1.7 Rockers:.748' Intake / .714' Exhaust
    Valve Setting:.028' Intake / .030' Exhaust
    Lobe Separation Angle:110°

    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 Street/Super Gas, 427-468c.i. 5000+ stall, 12:1+ compression.

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
Weight9.95 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)286
Cam StyleMechanical roller tappet
Grind NumberCB 313GR-10
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)278
Basic Operating Rpm Range4,500-7,300
Intake Valve Lash0.028 in (0.711 mm)
Intake Valve Lift0.748 in (18.999 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)313-6
Lobe Separation (Deg)110
Rpm Range4500-7300
Advertised Duration313 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 Duration313
Intake Duration At 050 Inch Lift278
Exhaust Duration At 050 Inch Lift286
Advertised Exhaust Duration322
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift278 int./286 exh.
Valve Springs RequiredYes
Vendor Part Number11-734-9
Package Qty1
Package TypeEA
No Questions
No Reviews

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