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Comp Cams Blower/Turbo Mechanical Flat Tappet Camshafts
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-11-405-5

Comp Cams Blower/Turbo Mechanical Flat Tappet Camshafts

$32595
ShippingShips on 11/02/2026
Lowest PriceLowest Price Guarantee

Big Block Chevy 396-454ci 1965-96
    Blower and Turbo Mechanical Flat Camshaft
    Chevy Big Block 396-454 V8 1965-1996
    Lift: .612"/.605"
    Duration: 290°/304°
    Lobe Separation Angle: 114°
    RPM Range: 3500-7000

    Good for Street and mild Strip use with 671 or larger blower.

    Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572


    Good for street and mild strip use with 671 or larger blower.

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

    These blower and turbo camshafts from Comp Cams are available in a variety of grinds. They work with your blower or turbo to help provide the most power possible.

    Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.

    Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.

    Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.

Part TypeCamshaft
Product LineComp Cams Blower/Turbo Mechanical Flat Tappet Camshafts
BrandCOMP CAMS
Package Height2.75
Package Width2.87
Package Length24.5
Weight10.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)266
Cam StyleMechanical flat tappet
Grind Number290DS
Exh. Duration Advertised (Deg)304
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.612
Int. Duration @ .050 In. (Deg)255
Basic Operating Rpm Range3,500-7,000
Intake Valve Lash0.028 in (0.711 mm)
Intake Valve Lift0.612 in (15.545 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)290
Lobe Separation (Deg)114
Rpm Range3500-7000
Advertised Duration290 int./304 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.605
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.612 int./0.605 exh.
QuantitySold individually
Exhaust Valve Lash0.03 in (0.762 mm)
Exhaust Valve Lift0.605 in (15.367 mm)
Advertised Intake Duration290
Intake Duration At 050 Inch Lift255
Exhaust Duration At 050 Inch Lift266
Advertised Exhaust Duration304
Lifter TypeMechanical Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift255 int./266 exh.
Valve Springs RequiredYes
Vendor Part Number11-405-5
Package Qty1
Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations
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