Your 375 will not have a Gilardoni cyl. This is only on the newer smaller midsize saws like the PP380, 3750, 3450 etc. And maybe the earlier PP365 type saws too. The old Poulans like 3400, 3700, 4000, 375, 395, etc. never used any other type (manufactured) cylinders that I know of. Same for the 4200, 5200 and all those.
Gregg,
FAst Gregg.