A question for the conversion guys out there. I have a 1979 351M and would like to install it into a 1991 Bronco. Does anyone know if the engine mounts will match and will the transmission in the 91 bolt up to the 351M without a different bellhousing? Will the A/C and P/S bolt pattern(s) match up? Basically, who knows what type of modification needs to be done....

 

It will NOT bolt up. The 351M uses a big block tranny pattern (same as a 460). I would not even consider the swap. The engine mounts are "who knows" what will fit. Just not a good idea. Look around and swap your 351M to csomeone who has a 351W to trade then you will be in the right ballpark.

Bob