AQ225 intake manifold

[fisherken1]

Is there any difference in a marine intake manifold and automotive intake for a chev 305 engine

[tuantom]

If both are cast iron, then it's a pretty safe bet that they're the same or an extremely similar casting. The auto version might have egr provisions - but those can just be blocked off.

[fisherken1]

Thank You for the help. I bought an intake manifold from a wrecking yard and saved over $500.00 from what the boat dealer wanted. Any suggestions on installing it. Do I use silicone or just the gaskets alone?
Thanks again for the help