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COMP Cams SK11-407-8 - Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts



COMP Cams SK11-407-8 - Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts
COMP Cams SK11-407-8 - Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts

JEGS Part Number: 249-SK11-407-8

Xtreme Energy Retro-Fit XR252HR Hydraulic Roller Camshaft Small Kit
Lift: .510"/.510"
Duration: 252/258
Lobe Separation Angle: 110°
RPM Range: 600-4600

COMP Cams SK11-407-8 Details

Chevrolet Big Block 396-454 c.i. 8 CYL. 1965-1996

  • Smallest of the line, excellent mileage, smooth idle

    Installation Notes:

  • Stock springs cannot be used
  • Requires thrust button & wear plate

  • Comp Cams 'Xtreme Energy' Hydraulic Roller 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 SK11-407-8

    Exhaust Valve Lift (in.)
    0.51
    Intake Valve Lift (in.)
    0.510
    Int. Duration @ .050 in. (Deg)
    200
    Exh. Duration @ .050 in. (Deg)
    206
    Int. Duration Advertised (Deg)
    252
    RPM Range
    600-4600
    Engine Make/Size
    Chevy Big Block (396-454)
    Lifter Type
    Hydraulic Roller
    Usage
    Street/Performance
    Exh. Duration Advertised (Deg)
    255
    Manufacturer's Part Number:
    SK11-407-8
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