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COMP Cams K11-773-8 - Comp Cams 'Xtreme Energy' Mechanical Roller Camshafts



COMP Cams K11-773-8 - Comp Cams 'Xtreme Energy' Mechanical Roller Camshafts

Part Number: 249-K11-773-8

Xtreme Energy Mechanical Roller Camshaft Complete Kit
Big Block Chevy 1965-96
  • Lift: .660"/.666"
  • Duration: 292°/298°
  • Lobe Separation Angle: 110°
  • RPM Range: 3200-7200
  • $901.45
    Ships 09/06/16
    if Ordered Today
    FREE Shipping

    COMP Cams K11-773-8 - Comp Cams 'Xtreme Energy' Mechanical Roller Camshafts Details

    Chevy 396-454ci Big Block 1965-96

    *Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16'' wide x 7/64'' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

    ** Note: Requires thrust button & wear plate.

    Best for Pro Street. Needs good intake and exhaust, 11:1 compression or more and 3500 stall converter.

    Operating Range:3200-7200 RPM
    Duration Advertised:292° Intake / 298° Exhaust
    Duration @ .050'' Lift:254° Intake / 260° Exhaust
    Valve Lift w/1.7 Rockers:.660'' Intake / .666'' Exhaust
    Valve Setting:.016'' Intake / .018'' Exhaust
    Lobe Separation Angle:110°

    Specifications:

    Intake Valve Lift (in.)
    0.660
    Exhaust Valve Lift (in.)
    0.666
    Int. Duration @ .050 in. (Deg)
    254
    Exh. Duration @ .050 in. (Deg)
    260
    Int. Duration Advertised (Deg)
    292
    Exh. Duration Advertised (Deg)
    298
    RPM Range
    3200-7200
    Engine Make/Size
    Chevy Big Block (396-454)
    Lifter Type
    Mechanical Roller
    Usage
    Street/Performance
    Gaskets Included
    No
    Advertised Duration
    292 int./298 exh.
    Advertised Exhaust Duration
    298
    Advertised Intake Duration
    292
    Assembly Lubricant Included
    No
    Basic Operating RPM Range
    3,200-7,200
    Cam Style
    Mechanical roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    254 int./260 exh.
    Exhaust Duration at 050 inch Lift
    260
    Exhaust Valve Lash (in.)
    0.018
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.666
    Grind Number
    CB XR292 R-10
    Intake Duration at 050 inch Lift
    254
    Intake Valve Lash (in.)
    0.016
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.66
    Lifter Style
    Mechanical roller
    Lifters Included
    Yes
    Locks Included
    Yes
    Outside Diameter of Outer Spring (in.)
    1.535
    Pushrods Included
    No
    Quantity
    Sold as a kit
    Retainers Included
    Yes
    Rocker Arms Included
    No
    Timing Chain and Gears Included
    Yes
    Timing Chain Style
    Double non-roller
    Valve Lift with Factory Rocker Arm Ratio
    0.660 int./0.666 exh.
    Valve Springs Included
    Yes
    Valve Springs Required
    No
    Valve Stem Seals Included
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    K11-773-8

    The Leading Edge of Valve Train Technology

    Comp Cams Xtreme Energy series camshafts can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These cams 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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