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COMP Cams 12-246-3 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts



COMP Cams 12-246-3 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts
COMP Cams 12-246-3 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts
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JEGS Part Number: 249-12-246-3

Xtreme Energy XE274H Hydraulic Flat Tappet Camshaft Only
Lift: .490''/.490''
Duration: 274°/286°
RPM Range: 1800-6000
  • Fits Applications:
  • 1977-1980
    BUICK
    1955-1986
    CHEVROLET
    1967-1988
    GMC
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COMP Cams 12-246-3 Details

Chevy 262-400ci Small Block 1955-98

*Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.

Very strong mid-range, torque & throttle response, use 2200+ stall converter.

Operating Range:1800-6000 RPM
Duration Advertised:274° Intake / 286° Exhaust
Duration @ .050'' Lift:230° Intake / 236° Exhaust
Valve Lift w/1.5 Rockers:.490'' Intake / .490'' Exhaust
Lobe Separation Angle:110°

Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts

The Leading Edge of Valve Train Technology

Comp Cams Xtreme Energy series are perfect for 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 and greatest in valvetrain technology . 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 springs 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.

  • Items similar to COMP Cams 12-246-3

    COMP Cams 12-246-3

    Intake Valve Lift (in.)
    0.487
    Exhaust Valve Lift (in.)
    0.49
    RPM Range
    1800-6000
    Int. Duration @ .050 in. (Deg)
    230
    Exh. Duration @ .050 in. (Deg)
    236
    Int. Duration Advertised (Deg)
    274
    Exh. Duration Advertised (Deg)
    286
    Engine Make/Size
    Chevy Small Block (262-400)
    Lifter Type
    Hydraulic Flat Tappet
    Usage
    Street/Performance
    Advertised Duration
    274 int./286 exh.
    Advertised Exhaust Duration
    286
    Advertised Intake Duration
    274
    Basic Operating RPM Range
    1,800-6,000
    Cam Style
    Hydraulic flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    230 int./236 exh.
    Exhaust Duration at 050 inch Lift
    236
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.49
    Grind Number
    CS XE274H-10
    Intake Duration at 050 inch Lift
    230
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.49
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.490 int./0.490 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    12-246-3
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