need another engine 3.0 litre 181 cid 4 cyl Mercruiser

[Impaired]

is there any place that I can either buy a new block or a used engine near owen sound or brace bridge? dont want to spend a ton of money
the cylinder wall was cracked in our engine after we pulled it out and cleaned it ugh

older boat so do not want to put a lot of money in to it but would like to get it to work again