Pictures of a J4 cylinder head next to a JP4

  1. #1
    Has anyone got pictures of a J4 head next to a JP4, or just a JP4 head. Id like to see the differences.

    Also if anyone has pictures of cylinder heads with work done to them would be helpful too.
  2. #2
    a worked jp4 head:



  3. #3
    Thanks you very much

    Any more pics people?
  4. #4
    Bump

    flow figures would also help (both standard and modified)