head gaskets
Is it normal to blow head gaskets on 502 carb merc with a m1 procharger sooner then without a procharger on it?
Any preventive tips to make them last longer? My mechanic is putting better head gaskets on and bolting the gaskets down so it is stronger and will last longer. I am sure you will say to get rid of the procharger. They machined the heads and said their was really no damage done |
So, you blew one? or asking if you will??
Blower=Cometic if it were me, if you blew a head gasket on a BBC you better look at fuel, if you have boost you MUST spend the money to upgrade your fuel system or you are going to have tons of issues.. tune it right and make some good power!! get EGT and air fuel gauges and monitor it or next will be a melted piston... |
Your engine builder is "bolting them down" ? Using bolts I am assuming by your statement ??? If he is not installing ARP head studs, then I would find another engine builder !!!!!
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Originally Posted by Smitty
(Post 3730888)
Your engine builder is "bolting them down" ? Using bolts I am assuming by your statement ??? If he is not installing ARP head studs, then I would find another engine builder !!!!!
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Yes,,,,and like above.....laminated gaskets ( cometic ) and studs, not bolts.
Alot more to it though then just bolting parts on. Make sure its an SC guy doing this !!!! |
The other guys posting on here are spot-on. Find someone who has SUCCESSFULLY built a supercharged marine motor that has lived for more than a season, and go with them. Also, give some thought to upgrading the steering on that boat for the speeds you are likely to reach if it is done right. Full hydraulic steering would be best, but at lease add something like a Drew stabilizer to it. A broken helm cable at 80+ MPH would be disastrous.
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Originally Posted by Budman II
(Post 3731026)
The other guys posting on here are spot-on. Find someone who has SUCCESSFULLY built a supercharged marine motor that has lived for more than a season, and go with them. Also, give some thought to upgrading the steering on that boat for the speeds you are likely to reach if it is done right. Full hydraulic steering would be best, but at lease add something like a Drew stabilizer to it. A broken helm cable at 80+ MPH would be disastrous.
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Ok, all good suggestions, but back to the original ?.... Head gaskets on a supercharged engine... In a word, your answer is YES!.. An sc engine will blow head gaskets easier than a non-sc engine. .. In all my sc engines I have always used the cometic brand head gaskets.. I suggest a little thicker gasket then was stock to try and lower your compression just a tadbit, 053 is what I have used in the past but I believe the folks at cometic can help you with your choice...also, on a stock engine I think 5 psi is tops unless you are changing fuel delivery and going into the motor deeper than just gaskets.
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Originally Posted by Full Force
(Post 3730861)
So, you blew one? or asking if you will??
Blower=Cometic if it were me, if you blew a head gasket on a BBC you better look at fuel, if you have boost you MUST spend the money to upgrade your fuel system or you are going to have tons of issues.. tune it right and make some good power!! get EGT and air fuel gauges and monitor it or next will be a melted piston... |
Originally Posted by Smitty
(Post 3730888)
Your engine builder is "bolting them down" ? Using bolts I am assuming by your statement ??? If he is not installing ARP head studs, then I would find another engine builder !!!!!
I may be mis quoting him on that. He said he is making the set up stronger. So the heads will last longer. The way he said it was set up was not strong enough. When i pick the boat up this week, i will ask himn again and get abetter understanding of what he did. I may have miss spoke. I thought my father said studs, but i will soon find out. |
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