I just pulled a 360/46rh from a 90 b350. Unless they changed alot (which I don’t think they did) just pull the grill/ radiator/support/ heads / intake/ alternator etc and pull engine and trany out the front . Hardest part is all the accessories/wiring/smog stuff on the 90. Yours is much simpler . Engine and trany slid out way easier than I expected.