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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-34-250-4
Xtreme Energy 284H Hydraulic Flat Tappet Camshaft Only Lift .584"/.588" Duration 284°/296° RPM Range 2300-6500
$30995
Ships on 09/15/2026
Lowest Price GuaranteeFord 429, 460 c.i. 8 CYL. 1968-1995
- Xtreme Energy 284H Hydraulic Flat Tappet Camshaft Only
Lift .584"/.588"
Duration 284°/296°
RPM Range 2300-6500
Hydraulic-Street/Strip, 2800+ stall, 9.5:1 compression, lower gears, rough idle
Ford; 429; 460; BBF; Big Block Ford; 385; Cobra Jet; 429 Cobra Jet; Interceptor; Lima; F100; F150; F250; Super Duty; E150; E250
Street/strip, 2800+ stall, 9.5:1 compression, lower gears, rough 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
BrandCOMP CAMS
Package Height2.8
Package Width3.0
Package Length24.2
Weight11.6 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)246
Cam StyleHydraulic flat tappet
Grind NumberXE-284H
Exh. Duration Advertised (Deg)296
Engine Make/SizeFord 429-460
Intake Valve Lift With Factory Rocker Arm Ratio (I0.584
Int. Duration @ .050 In. (Deg)240
Basic Operating Rpm Range2,300-6,500
Intake Valve Lift0.584 in (14.834 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)284
Lobe Separation (Deg)110
Rpm Range2300-6500
Advertised Duration284 int./296 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.588
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.584 int./0.588 exh.
QuantitySold individually
Exhaust Valve Lift0.588 in (14.935 mm)
Advertised Intake Duration284
Intake Duration At 050 Inch Lift240
Exhaust Duration At 050 Inch Lift246
Advertised Exhaust Duration296
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift240 int./246 exh.
Valve Springs RequiredYes
Vendor Part Number34-250-4
Package Qty1
Package TypeEA
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