'63 Valiant Newbie

I sold my 63 to a guy near Pittsburgh Pa. Another one I should have kept.
Mine was a 170. I don't know numbers but if you look at the waterpump by pass hose a 170 is very short, maybe 2'' or less.
The 225 is about 3''. Also the block has numbers stamped on a flat pad where the alternator block bracket bolts.
Tough to find and my need allot of cleaning to see it.