Who do you have for engines? I had Tremont last semester and built an EJ205 for my Subaru.
Basically he’s just really particular about having all the parts to finish it before you even take it apart because he doesn’t want some half finished project sitting in his lab and wasting class time because you ran out of money to buy stuff for it.
I think the other teacher is Prock and i’ve never met him so I don’t know about his class.