89bronco2

I got a 1989 Bronco 2 with a 2.9L V6 in it EFI and its pretty much done with.. and if it isnt i dont want to spend the money on it. I kno for sure the left head gasket is blown.. water in the oil and it wont start so im suspecting something worse. Either way i am probably goin to get rid of it and i have heard that a 302 mustang engine will fit perfectly in there. The truck is a standard and i dont really want to get rid of the transmission cause it looks nice and it has a new clutch. What i want to know is will the 302 drop in there and bolt up directly or will it not. My father read somewhere that theres a number in the VIN that will tell what kind of transmission it has and wether it will bolt up directly or not. And if not then what engine will? Im not lookin to spend too much, im actually looking to jus getting this engine out of a salvage.... shaving the heads re-ringing it and droppin it in. But PLEASE HELP!!! any advise will be greatly used