Ok, the frame brackets are listed as:
CJPonyParts: EFB1 124.95
National Parts Depot (NPD): 6028-9-1A 99.95 (call and check the price, this is from the 2006 Catalog)

The 289/302 motor mounts appear the same from 11/65 on.

 

Ok, maybe I was wrong about the motor mounts.
https://mustangforums.com/m_2932300/tm.htm

I would suggest asking the vendor which mounts to use with the brackets when you order them.

 

if i change the motor do i have to change the driveshaft or will it remain the same after the upgrade to a 9" rearend

 

what i would do is that i would drive it with the 6 for a while untill i had all the parts to make a swap, cause a 351w willl break your current axle and tranny for that matter.

 

The Driveshaft will probably have to wait till the rest of the new drivetrain is installed, It will depend on the drivetrain options you end up using. Myself, i'll end up with an AOD trans and 9" rear, both of which i already have, but until they are installed I have no way of knowing the final driveshaft length.

 

Atom's Idea has a lot of merit also. Take your time, assess all of your options, and the problems you can expect with each.

 

ok, thanks again im gonna throw up my current setup and what i want to get to just to see if it helps, this I6 doesnt have much life left in it thats why im eager to change it out. I would love to take my time with it too that would be nice, but my schedule wont allow me to being that my other car just sold (i wasnt expecting it too, not this soon).

I6 200ci
brand new C4 tranny
6.25 rear i believe

swap

351w
same tranny
8.8" rear out of an 87 lx

 

i second that!

 

Lol thanks, it would be difficult to steal though.

 

i've talked to a couple ppl and they said that the 6.5 would work with a 302 is this true?