blac94Z

hey you guy its me again so im getting ready swap my 94 lt1 for a LQ4 or a 5.3, but i just need to know what exactly i will need to complete this swap from wiring to reloction brackets any help will be gladly accepted
and also ive been thinking about buying 3.42 for my rearend what all do i need to change when changing my gears ?
Thanks you guys in advance

Injuneer

Hate to boost the competition, but I think this will help:

LTX --> LSX Conversion Sticky - LS1TECH

Still not clear to me why you would opt for a heavy cast iron truck engine (assuming you are using the low $$$ versions available in a bone yard), with a "too tall" intake manifold and a mismatched accessory drive system, when all you really need to do is get an all-aluminum LS1. Drop the LS1 out of the donor car intact - engine, trans, wiring harness, K-member, front suspension, wheels and tires, roll it over to the LT1 shell, and drop the nose of the LT1 over the assembly and bolt everything up. Over-simplified, but you get the idea.

blac94Z

see now I understand where you are coming from but even if I do go with the 6.0 it's the same as an lt1(cast block aluminum heads) and if I go with a 5.3 which will be all aluminum I will still need all the same stuff as getting a donor car,but getting the donor car is the whole thing. so basically I'm just trying to figure out exactly what I need and where to start ,I do appreciate you reply to my post your help.

Zee man

The lq4 is desirable because you can bore it out further than an ls. It is around 150 lbs heavier though.