I have a cracked block on my soon-to-be project 78' 222 FF and looking to replace it with a 350 chevy sb, and while my local mechanic was working on our other boat, he was smackin his lips thinking about all the work he could do talking about how we should replace it with a mercruiser package that would run like 7-8k instead of a 350 rebuild $$$ blah blah blah, if I'm not wrong I'm pretty sure I can find a useable 350 fairly cheap, I'm seeing brand new blocks for 2.5k. Thoughts on this, and would these mercruiser packages be a better way to go, I've never thought of that.