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Help required Replacing Merc Engine

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burkstar

Contributing Member
I currently have a Mercruiser

I currently have a Mercruiser 470 engine and outdrive. I am thinking replacing the engine (been a bit troublesom) with a Ford FSD425 Diesel engine. The standard engine only developes 80HP. My old Merc 470 developes a quoted 170HP that I hear is questionable??.
My question is what would happen if I fitted the diesel 80HP to my current outdrive? would it still have enough torque to get up to 3000/3500rpm which is what I need???. I dont really want to go down the lines of Turbo ford engines due to costs??
Please help.
 
"First check the condition of

"First check the condition of the floor, stringers and transom; might have some rot. For me, the cost of rebuilding the 470 along w/other new parts would be cheaper than replacing it w/a comparable HP deisel.

You could drop in a 225 HP 4.3L V-6 for about $4,500."
 
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