Converting from 3.7L to 3.0L mercruiser

[Devildog69]

Has anyone done this exchange and how does the boat run with the smaller unit??

Mercrusier recommends replacing the 3.7L with the 3.0L.

Thanks guys...

Steve

[spareparts]

I'd replace the 3.7 with a 5.0/5.7, cheaper than the 4.3, many more options available, plenty of parts and support. More than enough power. The 3.0 isn't all that cheap either

[smokeonthewater]

What hull?

[cfelton]

What happened to the 3.7? I rebuilt my 170 six years ago, its still running strong. Could you rebuild the original engine?