1998 ford mustang

I need help, I changed my engine, wiring harness for the engine, and computer in my 1988 convertible lx, to a 1992 model, I have it hooked up but it won’t turn over!

My son's engine died in his 98 Mustang Base with v6 3.8L automatic. We are looking for used engines on the net to see if we can swap it out. What problems would we run into if we pulled the engine out and replaced it with a 3.8L out of a 95 Mustang? I found one that is already pulled. The seller...

1998 Ford Mustang GT Convertible Black on Black - 5 Speed - No Mods - only 50K miles. Runs and drives like new, ice cold A/C. Clean Florida title in hand. $6,500