Originally Posted by
daniel simonsen
yeah but on interstate 95 and 210 you got to go at least 65 mph what rear end would be recomended for a 351 f 250 4x2 and how diffacult would it be to put a 351 in would i have to change the drive shaft or any thing besides the motor mounts and wireing harness would it bolt up to a c6 and should i put a smaller rear gear in it or should i go with a pro 5.0 motor would i get better top end than a 351? thanks alot Daniel
if you change engines, but not trannys, the driveshaft will never know (unless of course the I6 motor mounts force a tranny motor mount change - I have never done that)
If you absolutely must have 12mpg, then do the 351. Best idea is to put in a 4spd and lower the highway top end. f250 is heavy and is capable of doing heavy things - even with an I6
to get a top end worth feeling with a 5.0 you gotta see around 300hp