I need info on swapping Ls engines into older vehicles.
Plan is I have a 94 blazer full size 2d I want to build or swap in a newer engine goal is 300+ Hp fuel injected I want to simplify this set up as much as I can.

 

check out the web site lsswap.com. here you will find the info you seek. it covers the wiring harness, ecu, tcu, and any thing else you may need. they also have a forum that could be a great help