But off if your list, I would pick the stock motor with 4.0 head
258 w/ 4.0 head
4.0 stroked to 4.7
401
But off if your list, I would pick the stock motor with 4.0 head
'91 Bronco 351w, ZF5, D44 TTB, 9" rear swap with disk brakes, 37" toyos, method wheels, mastercraft seats, A/C and heat