93 is the cut off year for the fox body. 94 starts new body. Growing up my dad had and still has a black 89 5liter notchback mustang... So I have some experience here. Stock Lt1's and Ls1's are definitely faster than 5.0 liter mustangs especially the 94-95 body. I have to admit that we never had any major problems with the mustang. So I agree on reliability. But I feel you have to mod mustangs more to get some bang. Just my oppinion here.