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Howards HR Camshaft, 4/7 Swap 213/221 266/274 .485/.475 HR110

Butler Performance
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  • HOW-414645-10
    • HOW-414645-10
    Camshaft, 4/7 Swap, Hydraulic Roller Tappet, Advertised Duration 266/274, Lift .485/.475, Pontiac
    Limited Supply: only 1 remaining

    Description

    Cam Style:
    Hydraulic roller, Retro-fit
    Camshaft Use:
    Street/Strip
    Camshaft Manufacturers Description:
    Noticeable idle, broad low to midrange power band. Needs 2,000+ stall.
    Basic Operating RPM Range:
    1,400-5,600
    Intake Duration at 050 inch Lift:
    213
    Exhaust Duration at 050 inch Lift:
    221
    Duration at 050 inch Lift:
    213 int./221 exh.
    Advertised Intake Duration:
    266
    Advertised Exhaust Duration:
    274
    Advertised Duration:
    266 int./274 exh.
    Intake Valve Lift with Factory Rocker Arm Ratio:
    0.485 in.
    Exhaust Valve Lift with Factory Rocker Arm Ratio:
    0.475 in.
    Valve Lift with Factory Rocker Arm Ratio:
    0.485 int./0.475 exh.
    Lobe Separation (degrees):
    110
    Remanufactured:
    No
    Computer-Controlled Compatible:
    No
     
    4/7 Swap