engine identification

hey guys. so i just picked up a 63 wagon. i thought it would have a 170 in it. but i just wanted to verify. the number on the block is 2202857-7. according to these two websites its a 225. did they have 225's in 63. or is this a replacement engine. this car also has a pushbutton 904. will any slant six bolt up to that tranny?
Author: admin