Comp Cams  Magnum  Mechanical Flat Tappet Camshafts
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-12-224-4

Comp Cams Magnum Mechanical Flat Tappet Camshafts

$30995
ShippingShips on 09/08/2026
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Chevy 262-400ci Small Block 1955-98
    Magnum 294S Mechanical Flat Tappet Camshaft
    Lift: .525''/.525"
    Duration: 294°/294°
    Lobe Separation Angle: 110°
    RPM Range: 2500-6500


    *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.

    Maximum street performance, very rough idle, needs headers, 3000 stall and 9.5:1 minimum compression.

    Operating Range:2500-6500 RPM
    Duration Advertised:294° Intake / 294° Exhaust
    Duration @ .050' Lift:248° Intake / 248° Exhaust
    Valve Lift w/1.5 Rockers:.525' Intake / .525' Exhaust
    Valve Setting:.022' Intake / .022' Exhaust
    Lobe Separation Angle:110°

    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


    Maximum street performance, very rough idle, needs headers, 3000+ stall and 9.5:1+ 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 Height2.2
Package Width6.1
Package Length26.5
Weight8.77 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)248
Cam StyleMechanical flat tappet
Grind NumberCS 294S-10
Exh. Duration Advertised (Deg)294
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.525
Int. Duration @ .050 In. (Deg)248
Basic Operating Rpm Range2,500-6,500
Intake Valve Lash0.022 in (0.559 mm)
Intake Valve Lift0.525 in (13.335 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)294
Lobe Separation (Deg)110
Rpm Range2500-6500
Advertised Duration294 int./294 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.525
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.525 int./0.525 exh.
QuantitySold individually
Exhaust Valve Lash0.022 in (0.559 mm)
Exhaust Valve Lift0.525 in (13.335 mm)
Advertised Intake Duration294
Intake Duration At 050 Inch Lift248
Exhaust Duration At 050 Inch Lift248
Advertised Exhaust Duration294
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift248 int./248 exh.
Valve Springs RequiredYes
Vendor Part Number12-224-4
Package Qty1
Package TypeEA
No Questions
No Reviews

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