Thanks guys for the advice and comments. My main goal in this project was to give my 17 year old a classic looking car, with decent power, and excellent MPG. I had hoped to keep the OHC 6 in the car but unfortunately my son shows no interest in maintenance or mechanical aptitude. And that is the main reason behind looking at the LY7 or LLT V6 engine variant. I have located a complete G8 drive train and will be looking into it further. Does anyone know of a LY7/LLT install into a first gen Firebird/Camaro. Any help would be appreciated!