Swapping a 305 for a 350 in a 98 GMC 2wd

[frito-bandito]

What would I have to do to upgrade my 305 to a 350? Is it as simple as just replacing the long block, or do I need different fuel system components or different ECM? I know everything will bolt right up, just not sure about the electronics, thanks in advance!!

 

[Lextech]

It is a DIRECT bolt in. You should have the tune changed for the 350. I have heard of guys not doing the bigger engine tune without any issues---according to them.

Jeff