Drag Race Mechanical Roller Camshaft Lift: .660" /.630" Duration: 313/322 RPM Range: 4500-7500
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-12-801-9

Drag Race Mechanical Roller Camshaft Lift: .660" /.630" Duration: 313/322 RPM Range: 4500-7500

$55895
1 left in stock
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

Chevy 262-400ci Small Block 1955-98
    Drag Race Mechanical Roller Camshaft
    Lift: .660''/.630''
    Duration: 313/322
    RPM Range: 4500-7500


    *Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small 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.

    350-400ci, 5000 stall converter, 11.5:1 compression, ported heads.

    Operating Range:4500-7500 RPM
    Duration Advertised:313° Intake / 322° Exhaust
    Duration @ .050' Lift:276° Intake / 284° Exhaust
    Valve Lift w/1.5 Rockers:.660' Intake / .630' Exhaust
    Valve Setting:.026' Intake / .028' Exhaust
    Lobe Separation Angle:106°

    265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10


    350-400, 5000+ stall, 11.5:1+ compression, ported 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.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeCamshaft
BrandCOMP CAMS
Package Height2.9
Package Width2.9
Package Length24.2
Weight8.76 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)284
Cam StyleMechanical roller tappet
Grind NumberCS 313R-6
Exh. Duration Advertised (Deg)322-3
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.66
Int. Duration @ .050 In. (Deg)276
Basic Operating Rpm Range4,500-7,500
Intake Valve Lash0.026 in (0.66 mm)
Intake Valve Lift0.66 in (16.764 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)313-6
Lobe Separation (Deg)106
Rpm Range4500-7500
Advertised Duration313 int./322 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.63
UsageStrip
Valve Lift With Factory Rocker Arm Ratio0.660 int./0.630 exh.
QuantitySold individually
Exhaust Valve Lash0.028 in (0.711 mm)
Exhaust Valve Lift0.63 in (16.002 mm)
Advertised Intake Duration313
Intake Duration At 050 Inch Lift276
Exhaust Duration At 050 Inch Lift284
Advertised Exhaust Duration322
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift276 int./284 exh.
Valve Springs RequiredYes
Vendor Part Number12-801-9
Package Qty1
Package TypeEA
No Questions
No Reviews

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