Do any of you know what motor mounts to use when swapping a 351m to a 351 windsor? My truck is a 1978 F-150 4x4 NP435 trans. I have a 1972 Bronco cast iron bellhousing correct 28.2 oz. unbalanced flywheel, and a new windsor motor. Also what clutch linkage changes are needed, and is there a header out there for the windsor in a 78 4x4?
Any help would be appreciated. Please no comments telling me to go with a 460, thats what I now have, motor is tired, and I have a new windsor from another project that I want to use.

Thanks!

 

When my orginal 302 went south I put in a 71 351W....same motor mounts as the 302.

 

When I went from a 302 to a 351M all I had to change was the bell housing and the engine mounts (motor horns). The clutch linkage (mechanical) was the same. You might run into exhaust pipe differences, but that’s typical. My swap was manual transmission to manual transmission, so I already had the flywheel, pilot bushing, clutch linkage setup in place.
I would consider this basically the same setup as yours in reverse.

 

Thanks, Guys, but I think you are talking about 2 wheel drives. I said in my post that I have a 4x4.
And which after some thought today, I believe the motor mounts from an early Bronco, 70, 71 etc. would work, and fall right on the frame pedestals that the 351 M sat on.
Thanks!

 

It wouldn't matter. The distance from the bellhousing to the motor mounts are different.