manifold tube diameter 8v

  1. #1
    Can someone do me a favour and measure the diameter of the tubing on an 8v aftermarket manifold,one of the four pipes that come from the head,on a straight bit,with a vernier if possible,many thanks if someone can
  2. #2
    They will vary - the branches of the Piper 4-1 are much bigger in diameter than say a Raceland/ Supersprint.
  3. #3
    a starting point would be good,the ports on the head are approx 30mm just wondering what the average size is?
  4. #4
    I don't have any to hand any more so cant measure for you. Generally a good manifold will have considerably larger diameter primarys than the the head port size. The step acts as a none return valve is that stops the gasses reversing flow and backing up in to the engine.
  5. #5
    Kam Racing should be able to help you out.
  6. #6
    yeh,I emailed Kev,and hes getting round to doing it,i THINK
  7. #7
    I forgot today....
    well actually I was just manically busy
    I'll try to measure one tomorrow.

    Kev
  8. #8
    nice one Kev?
  9. #9
    I think he forgot again!!!!!!!ya think he was running a business or summit