Ok, So I have the 390 on hand, and have gotten it completely rebuilt... Im replacing the puny 240, and wondering what I need to do to the truck.. of course an adapter for motor mounts...right? and would adding larger front end springs be necessary? What do I need to do? Help me out guys! Thanks!

 

Move the perches to the rear set of holes in the frame. Buy the correct FE engine insulators.

You do have a correct FE bell housing? The 240 is a small block windsor pattern and not the same as the 390.

No need to add springs as the 240 and 390 weigh similar dressed.

Garbz

 

I have a complete engine and tranny, so I should be good on the bellhousing. Ill need to pick up some insulators though. Thanks!

 

Not sure if the pic helps; out of the 1965-1966 Ford f100-F250 Illustrated facts and figures? I can attempt to post info on the F250, and or, the Camper Special if needed.

I swapped the 240ci for a 302ci and kept the original coil springs; probly not a reasonable comparison to a 352/390? My 65 that came with the 240; the 65 with the 390, VIN on both indicate same GVW 5000 lb? Perhaps more knowledgeable member will chime in and clarify?