Did you use the same pushrods from the 4.2 head when installing the new 4.0 head?
My 4.2 head has shoulder bolts any particular reason for shoulder bolts, some have a stem that sticks out the top almost even with the top of the valve cover. I would prefer to you hex head bolts, they LOOK better, any reason not to?Can't find any to buy at Summit or Jegs. Dealer wants $10 each. <img src="/forums/images/graemlins/lol.gif" alt="" />