Slant 6 blocks and tranny matches
I just found a print out of block castings. 67-74 225 compatible block castings are:
2463430
2806830
2202857
2205528
When unit is used with a 904 trans, Assembly #3515827 Chrysler Part #2515608 sleeve should be used in crankshaft Pilot hole. Crankshaft centering ring is 2.157".
But then again for the same motor 2463430 for 60-67 shows it uses a 1.962" Crankshaft centering ring.