do you mean an auto from a 260 ford v8 bolt onto a 221 ford v8??.If so im pretty sure they're the same block 221,260,and early 5 bolt 289
No. The 223 is an odd one.....even the Y block bolt pattern is different. Most 223's had manual trans behind them.....
You can use their bellhousing to bolt a C4 to your 223. http://www.ford-y-block.com/c4adapt.htm This is the route I may go with my girlfriend's '54 Ford. The 223 isn't a horrible motor but the 2-speed automatic transmission ****s.....
Too bad you are so far away as a local yard has a 64 custom with a 224 and a automatic which is either a C-4 or FMX type.