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COMP Cams 12-677-4 - Comp Cams 'Xtreme Energy' Mechanical Flat Tappet Camshafts

COMP Cams 12-677-4 - Comp Cams 'Xtreme Energy' Mechanical Flat Tappet Camshafts
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COMP Cams#249-12-677-4

Xtreme Energy Mechanical Flat Camshaft
  • Lift: .501"/.510"
  • Duration: 274°/280°
  • Lobe Separation Angle: 110°
  • RPM Range 2000-6400
    • Fits Applications:
    • 1977-1980
      BUICK
      1955-1986
      CHEVROLET
      1967-1986
      GMC
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    COMP Cams 12-677-4 - Comp Cams 'Xtreme Energy' Mechanical Flat Tappet Camshafts Details

    Chevy Small Block 265-400ci 1955-98

  • Produces Better Throttle Response
  • Produces Top Engine Horsepower
  • Delivers Increased Engine Vacuum
  • 1 Year Limited Warranty

  • COMP Cams 12-677-4 - Comp Cams 'Xtreme Energy' Mechanical Flat Tappet Camshafts

    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.

    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.

    COMP Cams 249-12-677-4

    Intake Valve Lift (in.)
    0.501
    Exhaust Valve Lift (in.)
    0.51
    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 Small Block (262-400)
    Lifter Type
    Mechanical Flat Tappet
    Usage
    Street/Performance
    RPM Range
    2000-9000
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