Pleasure Craft Marine - they made V-drives too.
Popular in Competion Ski Boats and Wake Board Boats. Nautiques used them well after everyone else went indmar/Chevy. IIRC PCM secured an exclusive deal with Ford for marine windsors, If i recall correctly you could get a 240 (Could have been 260) horse carbed, a 290 Horse Carbed (which was a GT40 less FI) and the GT40. The GT40 was 310 or 320, I seem to recall they finagled the numbers when Indmar released the "Apex" which was basically a RamJet Crate Motor (remember those. ) Pleasure Craft was affiliated/a division of someone else SeaMax maybe. They were like a bright Turquoise (the affiliated company,) but 95% sure it was not Crusader.
Not sure who's in that market now, but back when i was in it Mercury was in it with the Scorpion and Super Scorpion 377. I almost bough a Malibu because you could get a Super Scorpion (it was like an 8000.00 option. IIRC a Malibu or Sanger with a super scorpion would do 55ish MPH which was cooking they was "Barefoot" boat territory. For a while Natique has a bare foot nautique with a BBC and Master Craft has a Prostar 190 Barefoot that was a 200HP out board. Was very difficult to get a Sanger on the east coast at that time or i would have probably gotten a Sanger.
I put 1.7 roller rockers a 90mm TB and a real GT40 intake upper on mine and had it to 49.5 on GPS a gain of about 2 or a little more MPH over stock, props were harder to get because PCM was a reduction gear and spun the prop backwards from an Indmar unless the indmar was a "Pro Slot" and most were not. IRRC max sustained cruise RPM was rated at 4800 on the GT40...
Oh Crud - i'm off topic, apologies.
Last oil change i took Overkills advice and put M1 0/40 in the Roller 445, but it hasn't moved in close to a year, it was fine for the few miles i ran it