351 Swap into 88TC
Reply #2 –
One word: search. this topic has been beaten to death.
With that said...
You can use your k, but as mentioned, you'll need mounts AND the rare, '86-'88 only brackets, OR you can use Chuck's mounts, which I'd recommend, as the 4 sets of mount brackets I've now came across have all been cracked on one or the other (and in one case, both.)
I'd guess the W in the '83 is probably carbed, right?
What about transmission? Manual? Auto?
If the TC is a stick, I'd suggest using a V8 spec T5, instead of the 2.3 T5, if you want to use first gear...
If going with efi, you'll need to locate an '88 ONLY harness, for the easiest work, as it will directly interface with existing car wiring/connectors. Mustang engine harnesses will NOT work w/o some repinning and otherwise.
Sorry if I come off as an ass about this, but I've had a goal for an efi Windsor Tbird, and if you think it's cheap or easy, well....let me tell ya, it's neither
Good luck!:D