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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K11-406-5
Comp Cams Blower/Turbo Mechanical Flat Tappet Camshafts
$77495
Ships on 10/19/2026
Lowest Price GuaranteeBig Block Chevy 396-454ci 1965-96
Blower and Turbo Mechanical Flat Camshaft Kit1955-1998 Chevy Big Block 396-454 ci Lift: .637"/.637" Duration: 310°/320° Lobe Separation Angle: 114° RPM Range: 4000-7500
- Blower And Turbo Camshaft Complete Kit
- 1 Year Limited Warranty
- Use in bracket racing and very hot street 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
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.2
Package Width10.5
Package Length25.3
Weight25.45 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)280
Cam StyleMechanical flat tappet
Grind Number310BS
Exh. Duration Advertised (Deg)320
Locks IncludedYes
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.637
Int. Duration @ .050 In. (Deg)270
Assembly Lubricant IncludedYes
Basic Operating Rpm Range4,000-7,000
Pushrods IncludedNo
Gaskets IncludedNo
Intake Valve Lash0.028 in (0.711 mm)
Rocker Arms IncludedNo
Intake Valve Lift0.637 in (16.18 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)310
Lobe Separation (Deg)114
Rpm Range4000-7500
Lifter StyleMechanical flat tappet
Advertised Duration310 int./320 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.637
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.637 int./0.637 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lash0.03 in (0.762 mm)
Exhaust Valve Lift0.637 in (16.18 mm)
Advertised Intake Duration310
Outside Diameter Of Outer Spring1.509 in (38.3 mm)
Intake Duration At 050 Inch Lift270
Exhaust Duration At 050 Inch Lift280
Timing Chain StyleDouble roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration320
Lifter TypeMechanical Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift270 int./280 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK11-406-5
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
