Hey all, I have a Celica ST162 gen 1 3SGE and Im just wondering is it posible to change the engine to a gen 3 or gen 4. I dont know much about celica's so. :P sucks. oh yeah its a 1989 if that makes a difference If the engine dont fit, I have been having trouble with 2nd and 3rd gear, From 4th gear it WILL NOT go into 3rd unless I dont use the clutch, and it grinds into 2nd from 3rd or 4th faster than 45 KPH. . . whats that mean ?