"I have a 1966 MERCRUISER 18&#
"I have a 1966 MERCRUISER 18' 120hp. It has been in storage for ten years. It dose turn over but i found water in oil!!! If head is craked, can i replace with any 4cyl chev head? Didnt check head gasket for i went to buy one and they told me i would be wasting my...