I am swapping motor and tranny from a 1978 F-250, Question is will the frame mounts work from the 351M for the 351 Windsor? If not anyone know where I can pick some up for the Windsor?
Thanks Tim

 

Nothing from the 351M will fit with the 351W. It would be an easier swap to go with a 460. You will need new towers, mounts and tranny/bell housing. If you are dead set on the 351W, you will need to find a donor truck that has a 302 or 300 in it, those towers will work.

 

M is a big block W is a small block just like a 302 get another big block or another truck for parts

 

The 351 Windsor was given to me, so thats why i wanted to put it in.
Also I have a another 78 Ford that had a 300 six in it, so you ae saying those towers will work. I have the motor and tranny from the 351 Windsor, mainly just was curious about the Frame mounts. Thanks Tim
Proud owner of 1978 F-250
1978 F-150 short bed
1977 f-150 4x4

 

I put a 351 Windsor in my 78 Bronco so I beg to differ with you.
yes the frame mounts will work
you are talking about the mount towers correct
just get the motor mounts for a truck or van with a Windsor
you already know that you have to change the trans with the Windsor right
oh yea, 351M is not a Big Block

 

Yes I know the trannies are different, I am referring to the mount that sits on the frame held on with 4 bolts, the one the rubber motor mount goes on!

 

it will sit right on the pearch's like it was made for it.
my bronco is not done yet, I will go out and take a picture of it
the front end is still off, ...Rick (Salt-Man) Salter
I'll be back!!

 

Here are some pictures for you. I hope they help

 

Did you have to redrill the towers? It looks like the mounts are sitting back some on the towers. That is the first time I heard of a 351W sitting on 351M towers.

 

Nope! I noticed that too, I thought maybe I had the mounts reversed? but I swapped them around and it sat in the same spot
it sits there fine as wine, and no its not up against the firewall
trust me when I was asking on all the forums if this would work everyone told me NO! but from all my measurements it would so I gave it a shot? I already had everything to do it so it didn't cost me anything extra to give it a try, I had to swap the output shaft in the Windsor 2whl drive tranny to the bronco short shaft, but that gave me a reason to try my hand at rebuilding a transmission, all worked out well, I have just put the project on hold since I picked up a 76 F250 4x4 Ranger XLT and I'm getting it ready for the road, I'll pick back up on it soon and finish the darn thing
77460ford has givin me a new found inspiration to get it done! but first I need to finish my Battle Tank

 

Well now, that is interesting. I wonder if I could put a 460 on my 300 towers. I was planning on buying the swap kit from JBG.

 

Well, I cant say yes for sure? but I sure cant see why not?
if you can set one on the 351m towers and I set a 351w on the 351m towers
if you have it all there give it a shot and let us know
thats what I did

 

Yep its true

yes
no, they're very different from truck mounts

 

that could be? I'm not sure

 

Finally got around to swapping my 351M for a 351W, fit perfect almost everything lined up, used the 351m frame mounts, driveshaft, radiator.
the only 2 things that did not work were the power steering pump, and the top radiator hose. the P/S pump bolted on to the water pump fine but where it mounts to the head it is not even close on the 351W.
Oh well I will fab a bracket and be ready to rock and roll!
Thanks for all you help!
Tim