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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-12-252-4
Xtreme Turbo Hydraulic Flat Tappet Camshaft Small Block Chevy 262-400 1955-98 Lift: .447"/.444"
$30995
Ships on 09/15/2026
Lowest Price GuaranteeChevrolet 262-400ci 1955-1998
- Xtreme Turbo Hydraulic Flat Tappet Camshaft
- Lift: .447"/.444"
- Duration: 256/263
- Lobe Separation Angle: 112°
- RPM Range: 1800-6000
Higher RPM street applications with 8-16 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
Higher RPM street applications with 8-16 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 Height2.7
Package Width2.8
Package Length24.3
Weight8.88 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)212
Cam StyleHydraulic flat tappet
Grind NumberXT256H
Exh. Duration Advertised (Deg)263
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.447
Int. Duration @ .050 In. (Deg)212
Basic Operating Rpm Range1,800-6,000
Intake Valve Lift0.447 in (11.354 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)256
Lobe Separation (Deg)112
Rpm Range1800-6000
Advertised Duration256 int./263 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.444
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.447 int./0.444 exh.
QuantitySold individually
Exhaust Valve Lift0.444 in (11.278 mm)
Advertised Intake Duration256
Intake Duration At 050 Inch Lift212
Exhaust Duration At 050 Inch Lift212
Advertised Exhaust Duration263
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift212 int./212 exh.
Valve Springs RequiredYes
Vendor Part Number12-252-4
Package Qty1
Package TypeEA
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