727 poly engine transmission

oldmopardude said

The 66' alignment pins on mine are in the same locations as the newer 67', just as the driveshafts interchange as well. 66's transitioned to tail splines, and also relocated the dowel pin location. They were on the same assembly line with the newer models. Now, my 727 64' push button torqueflite did hooked up to my A Motor 56', because those dowel pins are the same. That is true.

Click to expand...

I know for sho and for certain the early Hemi bellhousing pattern is the same as a small block and the locating dowels are at different locations. I have a 331 Hemi hangin on the engine stand less than 100' away. I took for granted that the poly motors were the same, since they are the same with a lot of other things. You can put Hemi heads right on to an early poly engine. It's a bolt on swap. But getting back to the bellhousing bolt pattern. Thinking about it, the Hemi is probably the odd man out, because right from the factory, they all had adapter plates unless they were a manual transmission.