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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-12-251-4
Xtreme Turbo Hydraulic Flat Tappet Camshaft Small Block Chevy 262-400 1955-98 Lift: .432"/.426"
$30995
Ships on 09/15/2026
Lowest Price GuaranteeChevrolet 262-400ci 1955-1998
- Xtreme Turbo Hydraulic Flat Tappet Camshaft
- Lift: .432"/.426"
- Duration: 250/257
- Lobe Separation Angle: 110°
- RPM Range: 1200-5500
Single turbo street applications with 5-10 lbs of boost265, 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
Single turbo street applications with 5-10 lbs. of boost.
Small Block Chevy 262-400 1955-98
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 Height2.8
Package Width3.0
Package Length24.4
Weight8.95 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)206
Cam StyleHydraulic flat tappet
Grind NumberXT250H
Exh. Duration Advertised (Deg)257
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.432
Int. Duration @ .050 In. (Deg)206
Basic Operating Rpm Range1,200-5,500
Intake Valve Lift0.432 in (10.973 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)250
Lobe Separation (Deg)110
Rpm Range1200-5500
Advertised Duration250 int./257 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.426
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.432 int./0.426 exh.
QuantitySold individually
Exhaust Valve Lift0.426 in (10.82 mm)
Advertised Intake Duration250
Intake Duration At 050 Inch Lift206
Exhaust Duration At 050 Inch Lift206
Advertised Exhaust Duration257
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift206 int./206 exh.
Valve Springs RequiredYes
Vendor Part Number12-251-4
Package Qty1
Package TypeEA
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