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Crane Cams 118421

Mechanical Roller Camshaft 1957-87 Small Block Chevy 262-400

Crane Cams 118421
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271-118421

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Estimated ship date 09/01/17 if Ordered Today
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Crane Cams 118421 Mechanical Roller Camshaft 1957-87 Small Block Chevy 262-400 $411.64
Mechanical Roller Camshaft
  • 1957-87 Small Block Chevy 262-400
  • Gross Lift: .670"/.625"
  • Advertised Duration: 298°/314°
  • RPM Range: 4400-8200

  • Crane Cams 118421 Details

    Small Block Chevy

    Competition only, bracket racing, good mid to upper RPM torque and HP, Super Pro, Super Gas, etc., auto transmission w/race converter, .960" base circle diameter, 12.5 minimum compression ratio advised.

    Note: Use .018" lash on exhaust only for continuous high engine speeds.

    Grind Number: R-268/4467-2S-6.96
    Operating Range:4400-8200 RPM
    Duration Advertised:298° Intake / 314° Exhaust
    Duration @ .050'' Lift:268° Intake / 276° Exhaust
    Valve Lift w/1.5 Rockers:.4467'' Intake / .4167'' Exhaust
    Max Lift Angle:103° BTDC Intake / 109° BBDC Exhaust

    Designed for operation at ranges that can exceed 10,000 RPM, mechanical roller cams represent the ultimate in efficiency. While a large number of mechanical roller cams are used in purely competition applications, Crane Cams does manufacture less severe roller grinds that are designed for high performance street engines that have higher compression or power-adders. For best results, valve lash must be checked and set periodically.

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