Today it’s common to find engines from several manufacturers that share displacement figures. Engineers determined that 500 cc per cylinder is a sweet spot for efficiency with low emissions and, consequently, there are lots of 2.0-liter four-cylinders, 3.0-liter sixes, and 4.0-liter V-8s. Before that discovery, road taxes in some countries also influenced displacement. Plenty of manufacturers ended up with engines designed to fit under certain mandated thresholds. Read the full article on Hagerty.com:
Packard had a 352 cubic inch V8, as did Ford. Before their V8's in 1955, Packard had a 327 cubic inch straight 8 - match to displacement of Chevy 327 V8 - and a 288 cubic inch straight 8 - close to a Ford or Studebaker 289 V8 in displacement.
International and Mopar also had different 392's. In Cornbinders, it was optional in pickups from 1969 until the end of the Light Line in 1975, although they also used the AMC 401 intermittently circa 1973-74. As for Chrysler products, it was the biggest displacement for the original Hemi in the 1950's.
Then there's the Ford and Studebaker 289's - completely different engines.
I own a Studebaker Lark and a Studebaker Avanti. When I'm asked the displacement of the cars' respective motors and respond "289," most people think I'm running a transplanted Ford engine. I always explain, "No Studebaker made this motor, you can't copyright or trademark cubic inch displacement number."