2.6L and 2.0L parts please help

Hey I have a 1991 B2600i and its got over 200k on it and started knocking, I also have access to a 1990 B2200 that needs a radiator and starter and a few small parts to get it running, its only got about 50k miles on it. My question is could i use the parts off my motor now to get it going or are they different? sorry for the stupidity motors just are not my thing. Thanks for the help!

toooootally different. not even the same engine family.

alright thats what i needed to know thanks man