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Crane Cams Mechanical Roller Camshaft 1967-95 Big Block Chevy 396-454

Crane Cams 138831
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Product images may differ from actual product appearance.

271-138831

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Estimated to ship directly from the manufacturer on 07/25/18
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Crane Cams Mechanical Roller Camshaft 1967-95 Big Block Chevy 396-454 $411.25
Mechanical Roller Camshaft
  • 1967-95 Big Block Chevy 396-454
  • Gross Lift: .714"/.714"
  • Advertised Duration: 300°/304°
  • RPM Range: 4400-7600

  • Crane Cams 138831 Details

    Big Block Chevy

    Performance usage, bracket racing w/heavy car, good mid to upper RPM torque and HP, Pro, Super Pro, etc., auto trans w/race converter, oval track, Modified, etc., 12.0 minimum compression ratio advised.

    Grind Number: R-268/420-2S-8
    Operating Range:4400-7600 RPM
    Duration Advertised:300° Intake / 304° Exhaust
    Duration @ .050'' Lift:268° Intake / 272° Exhaust
    Valve Lift w/1.7 Rockers:.420'' Intake / .420'' Exhaust
    Max Lift Angle:103° BTDC Intake / 113° 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.

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