I have an 83 ford F-150 4x4 with a six and a 4 speed I want to replace it with a 351 HO out of my86 F-150 2 wheel drive auto trans truck.I need to know all the parts I will need to do this swap. thanks alot  

the 351 will bolt to the I-6 I take it for granted that it is a 300, but a 3.8 is also the same) bellhousing, the auto trans will not fit into the truck w/o getting the output shaft changed to a 4x4 ( this involves completely disassembling the thing)I hope this helped