Engine swap 170 to 225

Hey, welcome to FABO sibarra!! OK, point by point;

1) Yes, look for a '68 or later mill, or you will not be able to install it over the converter hub
2) Yes, you will have to lengthen/change your head-pipe.
3) Yes, the 225 is 1" taller than your 170, but inclined at 30deg. is about 3/4" vertical.
4) All slant sixes are the same 3.40" bore, there are (3) different strokes/displacements.
5) No, the small hub converter cannot be just swapped in to use a '67 and down mill.
6) No, the 170 was made w/the large hub bore '68-'70.
7) Get the whole 225 carb & all, your 170 carb may be smaller &/or jetted differently.
8 ) You may need to swap your oil pan/pick-up to the 225 depending on the donor vehicle.
9) The small hub bore cranks were made from '60-'67.
10) You may want to get the throttle-press. linkage if poss. if your ride is an auto.
11) Same as point #8 for your eng. mounts/brackets.
12) Yes, small changes are there w/ belts& hoses etc.

OK, now I would like you to help me out if you would. Post the block casting#'s below
the manifolds, and count the core-hole plugs as well, 3 or 5 on your orig. 170(if it is).
Also the stampings next to the alt. bracket on the deck pad, I would appreciate it,Thx!!