well I had a hard time finding one and ended up getting two at Napa( Sierra Marine) years ago....
OMC made some but they are always out of stock... I bought two this year on ebay, one came with a teleflex gauge. what MODEL is your motor. my mid 90s V4 looper uses a 1/8th" pipe thread( blind hole) in the heads... I put one in each and have a separate gauge for each as well..
bob
Thanks Bob, I too have a mid 90's V4 looper (130hp). So 1/8" threads it is!! Thanks a lot.
wellllll, not so fast!!...my block is called the EAGLE block and is also described as a 60 degree looper...they only made a few V4 in this style...90 hp 105 hp and 115 hp.
you probably have a 90 degree looper... and I am NOT sure what the 130 hp heads look like
but you can cross reference at several parts sights.