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304 identification

Discussion in 'Intermediate CJ-5/6/7/8' started by nickelndime66cj, Apr 11, 2008.

  1. Apr 11, 2008
    nickelndime66cj

    nickelndime66cj Member

    Springville, Pa.
    Joined:
    Feb 22, 2004
    Messages:
    80
    Can anyone tell me how I can tell how to tell what year a 304 motor is. I found one for sale and would like to be able to tell what year it is. Also is there any changes in the engine from the start of production to the end of production years?
     
  2. Apr 11, 2008
    fuzz401

    fuzz401 New Member

    lancaster pa
    Joined:
    Oct 18, 2005
    Messages:
    30
    it all depends if the motor still has the orginal valve covers on - the only big change was the heads in the early 70's there were some 50 cc chamber heads and some 58 cc heads with screw in rocker studs after 74 they went to bridged rockers and 58 to 60 cc heads
     
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