... and found that on most engins the oilpan from the tranny protrudes into the crancase cavity
I think they run the same oil in the engine and transmission.
Saves space, weight, and money.
Yes, that would have to be covered. maybe cut and
weld the stock piece, or make something custom.
If I wanted a twin cam motor, I think I would try and get
a shaft drive 4 cyl, one with a separate bevel gear box.
The splines that drive the bevel gear box would be useful.
The oiling system is still a little puzzling. [S
Ideally the system would include a pressure relief, for cold starting.
Haven't figured that part out yet.