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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK35-421-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$94795
Ships on 09/10/2026
Lowest Price GuaranteeFord 351W 8 cyl. 1969-1996For engines NOT originally equipped with a hydraulic roller camshaft.
- Xtreme Energy XR270RF-HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .513''/.513''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1500-5500
For engines that DID NOT come from the factory with hydraulic roller cams, NOT FOR E.F.I.
Ford, 351W, Windsor, 351 Windsor, 302, 5.0 HO, Explorer, Mutang, Ford Mustang, 408, 347, Fox Body Mustang, Fox Body, 302 HO, Cougar, F100, F150
Good mid-range performance, 3.23+ gears, stock converter or 1800+ stall. Noticeable 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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.0
Package Length25.5
Weight17.86 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleHydraulic roller tappet
Grind NumberFW XR270RF-HR10
Exh. Duration Advertised (Deg)276
Locks IncludedNo
Engine Make/SizeFord 351W
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.513
Int. Duration @ .050 In. (Deg)218
Assembly Lubricant IncludedNo
Basic Operating Rpm Range1,500-5,500
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.513 in (13.03 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)110
Rpm Range1500-5500
Lifter StyleHydraulic roller
Advertised Duration270 int./276 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.513
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.513 int./0.513 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.513 in (13.03 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift218
Exhaust Duration At 050 Inch Lift224
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration276
Lifter TypeHydraulic Roller
Duration At 050 Inch Lift218 int./224 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK35-421-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
