Upgrading 90 LX Hatchback

[93snake]

Thats a broad question, first thing I would say is that you are correct, clutch and exhaust will have to be changed. Another thing to think about is the 7.5 rearend wont last long under the load (and abuse) of a V8, but remember, thats the same rearend in all the early GT's pre-86. An 8.8 would be a good upgrade. As for the sway-bars, the V8's rear sway bar is almost a most have. (I highly recommend it on the 4cyl to V8 swap), but the 4cyl springs will work, although you might want to swap over the V8 springs. But what you didnt say is if you were going to make it fuel injected or carb. Thats the hard part. Keep posting and I am sure myself and other members will be willing to help. Good luck, and hope this helps.