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Crane Cams 113801

Crane Cams Hydraulic Flat Tappet Camshafts

Crane Cams 113801


Crane Cams 113801 Crane Cams Hydraulic Flat Tappet Camshafts $136.65
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COMP Cams Comp Cams Xtreme 4x4 Hydraulic Flat Tappet Camshafts
COMP Cams 249-12-243-3
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PowerMax Hydraulic Flat Tappet Camshaft
Lift: .467''/.494''
Advertised Duration: 278°/290°
RPM Range: 2200-6200
  • Click More Info for specifications

  • Crane Cams 113801 Details

    Small Block Chevy 262-400ci 1955-98

    Crane PowerMax emissions-legal cams produce amazing increases in torque, horsepower, and throttle response while extending the RPM powerband of computer-controlled performance passenger cars and light trucks. They permit full function of stock engine computers or aftermarket performance chips.

  • Good idle
  • 3000-3400 cruise RPM
  • Daily performance usage
  • Mild bracket racing
  • 9.5 to 10.75 compression ratio advised

    CARB-Approved This camshaft is 50-state legal per the manufacturer's application guide. It has been granted a California Air Resources Board exemption (a "CARB EO" number) or is a direct or consolidated replacement part.

  • To use this cam in 1955-57 265 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.
  • Beginning in 1987, most V6 and V8 engines were equipped with hydraulic roller camshafts. There are differences in the block to accommodate a cam retention thrust plate and the anti-rotation mechanism for the lifters. These blocks are identifiable by bolt holes for a cam retention plate under the upper timing sprocket, as well as bosses and tapped holes in the lifter valley for lifter retention hardware. The camshafts on these engines have a step nose and smaller bolt circle on the front of the cam. An earlier model camshaft may be used in these blocks by using the appropriate timing chain set and adding a thrust button when using a roller cam.
  • 1988-99 Chevrolet 305 and 350, as well as some 1987 350 engines, use a camshaft core with a different configuration than the 1955-87 engines and cannot be interchanged.

    Grind Number H-278-2 (Replaces HMV-278-2)
    Operating Range2200-6200 RPM
    Duration Advertised278° Intake/290° Exhaust
    Duration @ .050" Lift222° Intake/234° Exhaust
    Valve Lift with 1.5 Rockers.467" Intake/.494" Exhaust
    Lobe Separation Angle114°
    Max Lift AngleIntake: 109° ATDC
    Exhaust: 119° BTDC
    Open/Close @ .050" Cam LiftIntake: 2° ATDC (opens)
    40° ABDC (closes)
    Exhaust: 56° BBDC (opens)
    2° BTDC (closes)

  • Specifications:

    Manufacturer's Part Number:

    The most popular OE camshaft type through the late 1980s, hydraulic lifter profiles can provide a power curve that tops out just over 7000 RPM when used with high-performance hydraulic lifters. Also easy to maintain, hydraulic cams range from aggressive (rough idle) to towing (improved bottom-end torque).

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    Some parts are not legal for use in California or other states with similar laws / regulations