1974 Seaswirl parts?

[Stubbs65]

I took my '74 seaswirl out on Utah lake for the first time this season, and it looks like I blew a head gasket. At least, that is what my buddy told me happened. I do not know a lot about engines. I have a buddy who is a mechanic, and he is pretty confident that he can fix my boat, but I am not sure where, or if, I can get parts for a boat that old. The engine is '74 mercruiser six-cylinder. Does anyone know where I can get a head gasket kit for this motor? I would prefer to buy locally, but if there is not a local shop that sells this, does anyone know of a website or some place online that I could search for this part? Any help would be appreciated. Thanks.
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[MERCURYMAN]

Marine Products should be able to get all of the parts that you need to fix your boat. There is a good chance they have most of them in stock.
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