I am wanting to swap out my stock 305LTZ to a 350LT1, is it a simple swap just basically bolt in no problems? Or must all the wiring and computer be changed? Any information/swap giides would be much appreciated. Thanks.. ~nss9c1
I've heard of people trying it, and usually not doing well. It is very expensive and time consuming. You will need an LT1 motor of course, a 4L60E trans(yours is only a 4L60), a Painless wiring harness, and of course all the fuel injection, etc. I would upgrade to an L05 350, good engine, I installed a new one in my 92.
The L05 was an option on the 91-93 B-bodies, but you already knew that, right [img]smile.gif[/img] It was also available in the full-size truck, but they didn't get roller lifters. Just flat tappet hydralics. However, the block was machined for the roller lifters so that shouldn't be too big of a deal to adapt.
Try to grab the computer and TBI from the vehicle you get the 350 from. Otherwise, you'll need bigger injectors and custom programming.