Help 454 mag head gaskets
#22
I get that but in a effort to get back on the water I almost bought a new head from ebay until I found out that the exhaust valves are water cooled. I would much rather have a valve guide put in then buy a new head for the boat. I didn't even know it was a possibility on these BBC engines. Im not guessing so much as Im hoping someone with experience will tell me for certain if that was a possibility. For a marine engine I would think someone has had this happen before. I believe someone replied above stating it happened to them but again I was unsure that his problem wasn't water coming from under the valve cover.
#24
Registered
Pull the heads off of the engine. If there are no obvious signs of a head gasket being blown then take the heads to a reputable machine shop and have them checked out. You have already wasted a week of summer and are not one bit closer to a solution.