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COMP Cams 35-421-8

Comp Cams Xtreme Energy Hydraulic Roller Camshafts

COMP Cams 35-421-8

249-35-421-8

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Ships 12/12/16 if Ordered Today
COMP Cams 35-421-8 Comp Cams Xtreme Energy Hydraulic Roller Camshafts $327.99
Xtreme Energy XR270RF-HR Retro-Fit Hydraulic Roller Camshaft
Lift: .513"/.513"
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1500-5500

COMP Cams 35-421-8 Details

Ford 351W 8 cyl. 1969-1996

  • For engines NOT originally equipped with a hydraulic roller camshaft.

    Hydraulic Roller-Good mid-range performance, 3.23+ gears, stock converter noticeable idle

  • Specifications:

    Exhaust Valve Lift (in.)
    0.513
    Intake Valve Lift (in.)
    0.513
    RPM Range
    1500-5500
    Int. Duration @ .050 in. (Deg)
    218
    Exh. Duration @ .050 in. (Deg)
    224
    Int. Duration Advertised (Deg)
    270
    Exh. Duration Advertised (Deg)
    276
    Lifter Type
    Hydraulic Roller
    Usage
    Street/Performance
    Engine Make/Size
    Ford 351W
    Advertised Duration
    270 int./276 exh.
    Advertised Exhaust Duration
    276
    Advertised Intake Duration
    270
    Basic Operating RPM Range
    1,500-5,500
    Cam Style
    Hydraulic roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    218 int./224 exh.
    Exhaust Duration at 050 inch Lift
    224
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.513
    Grind Number
    FW XR270RF-HR10
    Intake Duration at 050 inch Lift
    218
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.513
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.513 int./0.513 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    35-421-8

    The Leading Edge of Valve Train Technology

    Comp Cams Xtreme Energy series can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These camshafts are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve train components with these camshafts due to the aggressive lobe designs.

    Features:
  • Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
  • More vacuum allows an increase in duration for improved performance and assists power brakes
  • Excellent performance in street carbureted applications
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios

    Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.

    Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.

    Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.

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