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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK34-231-4
'Xtreme 4x4' Hydraulic Flat Tappet Camshaft X4256H Small Kit Lift: .514" /.514" Duration: 256°/262° RPM Range: 1000-5000
$50395
Ships on 09/15/2026
Lowest Price GuaranteeFord 429, 460 c.i. 8 CYL. 1968-1994
- Xtreme 4x4 X4256H Hydraulic Flat Tappet Camshaft Small Kit
Lift: .514''/.514''
Duration: 256°/262°
RPM Range: 1000-5000
Strong low-end and mid-range torque, has a good idle.
| Operating Range: | 1000-5000 RPM |
| Duration Advertised: | 256° Intake / 262° Exhaust |
| Duration @ .050' Lift: | 210° Intake / 218° Exhaust |
| Valve Lift w/1.73 Rockers: | .514' Intake / .514' Exhaust |
| Lobe Separation Angle: | 111° |
Ford; 429; 460; BBF; Big Block Ford; 385; Cobra Jet; 429 Cobra Jet; Interceptor; Lima; F100; F150; F250; Super Duty; E150; E250
Strong low end and mid-range torque, good idle.
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.
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Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height6.4
Package Width10.5
Package Length25.5
Weight21.39 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)218
Cam StyleHydraulic flat tappet
Grind NumberFF X4 256H-11
Exh. Duration Advertised (Deg)262
Locks IncludedNo
Engine Make/SizeFord 429-460
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.514
Int. Duration @ .050 In. (Deg)210
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,000-5,000
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.514 in (13.056 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)256
Lobe Separation (Deg)111
Rpm Range1000-5000
Lifter StyleHydraulic flat tappet
Advertised Duration256 int./262 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.514
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.514 int./0.514 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.514 in (13.056 mm)
Advertised Intake Duration256
Intake Duration At 050 Inch Lift210
Exhaust Duration At 050 Inch Lift218
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration262
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift210 int./218 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK34-231-4
Package Qty1
Package TypeEA
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