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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-CL12-243-3
'Xtreme 4x4' Hydraulic Flat Tappet Camshaft for Small Block Chevys
$38695
1 left in stock
Ships Today
Lowest Price GuaranteeChevy 262-400ci Small Block 1955-98
Hydraulic Flat Tappet Camshaft & Lifter Kit1958-1998 Small Block Chevy 262-400ci Xtreme 4x4 X4270H Lift: .480 in./.498 in. Duration: .270°/278° Lobe Separation Angle: 111° RPM Range: 1800-6000
Strong mid-range and throttle response, likes headers, gears, 2200+ stall.
Notes:
- In order to use these camshafts in 1955-1957 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.
- Upgraded valve springs are required to run this camshaft. (249-981-16)
Strong mid-range torque and throttle response, likes headers, gears, 2200+ stall converter.
| Operating Range: | 1800-6000 RPM |
| Duration Advertised: | 270° Intake / 278° Exhaust |
| Duration @ .050 in. Lift: | 226° Intake / 234° Exhaust |
| Valve Lift w/1.5 Rockers: | .480 in. Intake / .498 in. Exhaust |
| Lobe Separation Angle: | 111° |
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
Strong mid-range and throttle response, likes headers, gears, 2200+ stall.
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 Height3.0
Package Width5.6
Package Length25.2
Weight13.35 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)234
Cam StyleHydraulic flat tappet
Grind NumberCS X4 270H-11
Exh. Duration Advertised (Deg)278
Locks IncludedNo
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.48
Int. Duration @ .050 In. (Deg)226
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,800-6,000
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.48 in (12.192 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)111
Rpm Range1800-6000
Lifter StyleHydraulic flat tappet
Advertised Duration270 int./278 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.498
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.480 int./0.498 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.498 in (12.649 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift226
Exhaust Duration At 050 Inch Lift234
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration278
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift226 int./234 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL12-243-3
Package Qty1
Package TypeEA
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