May want to investigate getting LT4 accessory brackets, pulls all of the accessories up to the top, instead of down at the bottom. For an LT1 to fit in my truck I would have had to notch the frame rail for the AC compressor. LT4 was a drop in, but cost wise it may be easier to notch what is needed if anything for a g-body. I got an LT4 out of a wrecked GS vette and transplanted to my '94 Silverado.
You can pick up stock LT1 aluminum heads from f-bodies for around $100-200 and then have a good LT1 porter work them over to flow as much as the aftermarket heads. Lloyd Elliot is known for his head packages with stock casting heads,
Lloyd eportworks He also does intake porting. I have the LE2 heads and intake on my '95 TA.
You'll want to replace the opti too while its out..maybe you already know alot about the LTx, but AC Delco only optis, the rest seem to be crap or no better, and you can get them for around $250 from either of these sources..all GM parts at near wholesale in fact from Jason or Dal
4th Gen LT1 F-body Tech Articles
Have any other LTx questions, ask or go to
CamaroZ28.Com Message Board and go to the LT1/LT4 section.
Not in a g-body, but it still looks good