Hi all,

First post; please forgive if dumb.

I recently bought a 1973 Bayliner Saratoga 2550 IO from a private party, and
I'm trying to find out information on the engine & drive. The previous
owner told me that it's a Ford Windsor 351 Mercruiser. I've grabbed the
serial numbers off of the stickers on the port side valve cover and entered
it into Mercury's PartsExpress site, and I come up blank. Can anyone decode
my serial numbers?

Engine: 3601827
Drive: 6183040

According to one of the serial-number-to-model-year cross references I
found, it's either a 1971-73 188 HP Model 885, or a 1973 225 HP Model 225.
I'm thinking that it's the 188 HP. Am I even close? Where do I find parts
for the engine & drive?

Thanks,
Matthew