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Crane Cams 13744-1 - Crane Cams Energizer Roller Rocker Arms



Crane Cams 13744-1 - Crane Cams Energizer Roller Rocker Arms

Part Number: 271-13744-1

Energizer Rocker Arms
  • 1965-90 Chevrolet 396-402-427-454-502 V8
  • 1991-00 Chevrolet 454-502 Gen V and VI
  • Ratio 1.7
  • Stud Diameter 7/16"
  • Quantity: 1
  • $13.90
    Ships

    Crane Cams 13744-1 - Crane Cams Energizer Roller Rocker Arms Details

    Chevrolet

    Stock ratio and standard stud diameter. The 1991 and later Gen V and VI engines require the installation of 99152-16 7/16" rocker arm studs (no machining required) and factory pushrod guideplates. For applications with over 480 pounds open valve spring pressure, the cylinder heads must be machined for the installation of 99157-16 7/16" rocker arm studs and 13650-1 pushrod guideplates.

    Crane Cams Energizer Roller Rocker Arms feature a die formed aluminum body with needle bearing fulcrum and roller tip. The needle bearing fulcrum and roller tip reduces friction, lowers engine oil temperature, improves response, increases HP and RPM. Aerospace vacuum die-formed aluminum main body offers extreme strength and light weight. Great for street and moderate race use.

    Die-formed aluminum body is larger than stock, may require modifications to stock valve covers for clearance.

    Features:
  • Die-Formed Cast Aluminum
  • CNC Machined
  • Heavy-Duty Precision Ground Steel Needle Bearings
  • Heat-Treated Roller Tips
  • For Use With Valve Springs Up To 450 lbs Open Pressure

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