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COMP Cams 12-250-3 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts



COMP Cams 12-250-3 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts
COMP Cams 12-250-3 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts
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JEGS Part Number: 249-12-250-3

Xtreme Energy 284H Hydraulic Flat Tappet Camshaft Only
Lift: .507''/.510''
Duration: 284°/296°
RPM Range: 2300-6500
  • Fits Applications:
  • 1977-1980
    BUICK
    1955-1986
    CHEVROLET
    1967-1988
    GMC
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COMP Cams 12-250-3 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.

Street/Strip, 2800+ stall, likes headers & gears, rough idle.

Operating Range:2300-6500 RPM
Duration Advertised:284° Intake / 296° Exhaust
Duration @ .050'' Lift:240° Intake / 246° Exhaust
Valve Lift w/1.5 Rockers:.507'' Intake / .510'' 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 12-250-3

    COMP Cams 12-250-3

    Intake Valve Lift (in.)
    0.507
    Exhaust Valve Lift (in.)
    0.51
    RPM Range
    2300-6500
    Int. Duration @ .050 in. (Deg)
    240
    Exh. Duration @ .050 in. (Deg)
    246
    Int. Duration Advertised (Deg)
    284
    Exh. Duration Advertised (Deg)
    296
    Engine Make/Size
    Chevy Small Block (262-400)
    Lifter Type
    Hydraulic Flat Tappet
    Usage
    Street/Performance
    Advertised Duration
    284 int./296 exh.
    Advertised Exhaust Duration
    296
    Advertised Intake Duration
    284
    Basic Operating RPM Range
    2,300-6,500
    Cam Style
    Hydraulic flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    240 int./246 exh.
    Exhaust Duration at 050 inch Lift
    246
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.51
    Grind Number
    CS XE284H-10
    Intake Duration at 050 inch Lift
    240
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.507
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.507 int./0.510 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    12-250-3
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