How to identify replaced mercruiser engine

Wilburx13

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Apr 9, 2013
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4
Hi all,

I bought a 1976 Mako earlier this year. The outdrive is a Mercruiser Bravo I, and I had no problem finding the serial number on it. The engine on the other hand I have not been able to identify. I know the engine was replaced in 2005 with what I'm assuming was essentially a crate engine because I cannot find any identifying serial numbers or anything. I've looked everywhere that it says a Mercruiser serial number plate would be, and I had to take off the starter at one point earlier in the summer and there wasn't any plate behind there. How do I go about identifying what particular model engine I have? I want to get a maintenance manual for it before I take the boat out at the end of the year.

I know it's a 5.7L V8 350, but beyond that I don't know what manual I would need. I've included a picture if that helps with identifying at all.
photo (2).jpg
 

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