camshaft specs

Discussion in 'Street/strip 400/430/455' started by cheva71, Aug 20, 2004.

  1. cheva71

    cheva71 New Member

    Can somebody please help me with the specs of the stock camshaft in a 455 -72.
     
  2. Buickus Rex

    Buickus Rex '67 GS400 4-Speed

    Here you go. I measured these specs on the original cam that was in my '72 1238861 block:

    Duration @ .006":
    Intake: 262 *
    Exhaust 282*

    Duration @ .050" :
    Intake 200*
    Exhaust 226*

    Lobe Separation: 118*

    Net Lobe Lift:
    Intake: .261"
    Exhaust: .285"

    Lift w/1.6 Rockers:
    Intake: .418"
    Exhaust: .456"

    Hope this helps.

    Larry
     
  3. 87GN_70GS

    87GN_70GS Well-Known Member

    How much advanced was it?
     
  4. Buickus Rex

    Buickus Rex '67 GS400 4-Speed

    Intake C/L 114* --> 4 degrees advance built in

    Larry
     

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