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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-12-681-5
Comp Cams Oval Track Camshafts
$32595
Ships on 09/08/2026
Lowest Price GuaranteeSmall Block Chevrolet 262-400ci 1955-1998Launcher Series Mechanical Flat Tappet
- Oval Track Mechanical Flat Tappet Camshaft
- Launcher Series Camshaft
- 1 Year Limited Warranty
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
.283" lobe lift - Good for higher RPM tracks restricted with .425" or .450" lift rule.
Chevrolet 262-400ci 1955-1998
Lift: .425"/.425"
Duration: 273°/277°
Lobe Separation Angle: 107°
RPM Range: 3200-6800
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 Height2.75
Package Width3.0
Package Length24.5
Weight8.84 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)250
Cam StyleMechanical flat tappet
Grind NumberCS 273L283 S7
Exh. Duration Advertised (Deg)277
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.425
Int. Duration @ .050 In. (Deg)246
Basic Operating Rpm Range3,200-6,800
Intake Valve Lift0.425 in (10.795 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)273
Lobe Separation (Deg)107
Rpm Range3200-6800
Advertised Duration273 int./277 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.425
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.425 int./0.425 exh.
QuantitySold individually
Exhaust Valve Lift0.425 in (10.795 mm)
Advertised Intake Duration273
Intake Duration At 050 Inch Lift246
Exhaust Duration At 050 Inch Lift250
Advertised Exhaust Duration277
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift246 int./250 exh.
Valve Springs RequiredYes
Vendor Part Number12-681-5
Package Qty1
Package TypeEA
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