There are three lengths of water pumps that fit a 292. 194,230,250, and 292 all use the same bolt pattern.
Only the 292 has the extra bypass hose, but unless you have it in a big truck that is going to haul heavy loads, than the bypass is unnecessary.
I have put 292’s in a couple of these with the shortest pump, one in a 1950 Chevrolet truck, and I did not need or use a GMC crossmember.
