FREE SHIPPING & HANDLING!*                           Order by 11 PM EST for Same Day Shipping!

COMP Cams 11-250-20 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts

COMP Cams 11-250-20 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts

COMP Cams#249-11-250-20

XTREME ENERGY™ XE284H-10 Hydraulic Flat Tappet Nitrided Camshaft
Lift .574"/.578"
Duration 284/296
RPM Range 2300 to 6500
Lobe Center Angle 110°

COMP Cams 11-250-20 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts Details

Chevy 396-454ci Big Block 1965-96

COMP Cams® is the only aftermarket valve train company in America that provides a Pro Plasma™ Nitriding Service in-house. Nitriding is a process by which nitrogen is introduced into iron or steel, causing a material's surface hardness to be increased for improved initial and long-term wear characteristics. It is recognized by metallurgists worldwide as the best way to increase the hardness and lubricity of flat tappet cams to enhance break-in and durability. Nitriding is available for any COMP Cams® flat tappet camshaft, but many popular flat tappet camshafts have already undergone the Pro Plasma™ Nitriding treatment and are on the shelf, ready to be shipped. Don't get blinded by shiny surface finishing or heat-treating - nitriding has been race-proven around the world and documented to deliver superior results. If you don't see the part number camshaft you are looking for, call us at 1-800-999-0853 or e-mail us at camhelp@compcams.com to order a flat tappet camshaft with the nitriding option.

  • Stage 1: Pre-nitrided, unfinished camshaft
  • Stage 2: Nitrided camshaft surface approximately .008"-.010" deep; black oxide finish

  • COMP Cams 11-250-20 - 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.

    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 249-11-250-20

    Intake Valve Lift (in.)
    0.574
    Exhaust Valve Lift (in.)
    0.578
    Int. Duration @ .050 in. (Deg)
    240
    Exh. Duration @ .050 in. (Deg)
    246
    Int. Duration Advertised (Deg)
    294
    Exh. Duration Advertised (Deg)
    296
    Engine Make/Size
    Chevy Big Block (396-454)
    Lifter Type
    Hydraulic Flat Tappet
    Usage
    Street/Strip
    RPM Range
    2200-7200
    Grime Boss A541S30X - Grime Boss Hand Wipes
    Only $9.99

    Grime Boss A544R10X - Grime Boss Hand Wipes
    Only $4.69