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COMP Cams 11-653-47

Xtreme Energy Mechanical Flat Camshaft 4 & 7 Swap

COMP Cams 11-653-47

249-11-653-47

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Ships 12/12/16 if Ordered Today
COMP Cams 11-653-47 Xtreme Energy Mechanical Flat Camshaft 4 & 7 Swap $223.99
Xtreme Energy Mechanical Flat Camshaft
  • 4 & 7 Swap
  • Lift: .568"/.578"
  • Duration: 274°/280°
  • Lobe Separation Angle: 110°
  • RPM Range 2000-6400

  • COMP Cams 11-653-47 Details

    Chevy Big Block 396-454ci 1965-96

  • 4 & 7 Swap Firing Order

    Solid-Very strong mid-range torque and throttle response, 2500+ stall.

  • Specifications:

    Intake Valve Lift (in.)
    0.568
    Exhaust Valve Lift (in.)
    0.578
    RPM Range
    2000-6400
    Int. Duration @ .050 in. (Deg)
    236
    Exh. Duration @ .050 in. (Deg)
    242
    Int. Duration Advertised (Deg)
    274
    Exh. Duration Advertised (Deg)
    280
    Engine Make/Size
    Chevy Big Block (396-454)
    Lifter Type
    Mechanical Flat Tappet
    Usage
    Street/Performance
    Advertised Duration
    274 int./280 exh.
    Advertised Exhaust Duration
    280
    Advertised Intake Duration
    274
    Basic Operating RPM Range
    2,000-6,400
    Cam Style
    Mechanical flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    236 int./242 exh.
    Exhaust Duration at 050 inch Lift
    242
    Exhaust Valve Lash (in.)
    0.016
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.578
    Grind Number
    XE274S
    Intake Duration at 050 inch Lift
    236
    Intake Valve Lash (in.)
    0.016
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.568
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.568 int./0.578 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    11-653-47

    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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