Ford also had a 360, famously used in '60's - '70's pickups.
Here's another one: While not a V-8 pair, both Ford and Chevrolet had 292s. The Ford was a member of their first OHV V-8 ("Y-block") series, and the Chevrolet was an in-line six, again used exclusively in trucks.
6-pairs? I figure it could easily be ten times that. The more modern use of the metric system to describe displacement makes it more difficult to identify newer engine sizes with those of the '50's - '70's. For instance, Ford made two completely different versions of the 302 (5.0L) and 351 (5.8L), the second group, from Ford's "Modular Family", were overhead cam, and came out in 1990. Included in that family was a second 5.8L that displaced 354 cubic inches, which was a Chrysler Firepower hemi, introduced in 1955. Also included in this family of Ford engines was a 5.4L, 330 cubic inches, which was the displacement of the DeSoto FireDome hemi from 1956.
There were also two different Chrysler 318's; the polyspherical head, 1957 to 1966, and the wedge head, 1967 on. There were often polyspherical and hemispherical ("hemi") head versions of many of Chrysler's '50s engine.
I'm just scratching the surface....
You’re not getting it. This article was about different engines with the same displacement. The engine used in the Rover was the exact same 215 as in the Buick. It wasn’t a different engine.
On the other hand, the 3.5 litre Rover/Buick/Olds V8 is not the same engine as the 3.5 litre V8 Lotus engine used in the last runs of Esprits. Same displacement, more or less, and both aluminum V8s made in England but different engines.
I thought Rover sleeved the 215 cylinders, but didn't find that to be the case. I drove a 62 Oldsmobile F85 quite a bit. It had about 65000 miles and smoked terribly. It was still fast however.
TheFlow, I thought the Ford 360 was a Truck motor that came out in 1973. I believe it was an FE family motor and the base V8 in the '73-mid '70's Ford F-series trucks, the optional V8 was the 390 from the same engine family. I never knew the 360 motor to be used in any Ford car models; however, the 390 was a mainstay in the cars you mention for many years going back to the late '60's. Later in this truck series, Ford switched from these FE motors to the M (Modified Cleveland) 351 & 400 c.i. engines. These M series engines were in both Ford light trucks and several car models.
Cadillac also had a 390, 1959-1963. BTW, AMC's 390 was also used in their SC/Rambler, based in their compact Rambler American (1969).
Another displacement that was used at least times: 302. Besides the well-known Ford and Chevrolet engines, Porsche's 928 5.0L was exactly 302 cubic inches.
You can get real inclusive if you go metric and count all the 5.0L V-8s. Ford, Porsche, Mercedes-Benz, AMC (304); Chevrolet made three (302, 305, 307)! That's just a start. I'm sure there are many more....
Sorry, jwkoskela, I’m pretty sure your ‘59 Merc engine was part of the LEM engine series. Along with the 430 c.i. found in Lincolns, early square birds, Mercury’s and big Edsels. If the intake manifold was removable without removing the valve covers, it was an LEM series engine. They were also available with tri-power. Google LEM engines and all will be revealed.
Don't forget the Olds, Pontiac and Buick 400's as well. Chevy had a BB 400 that was used in the early Monte Carlo's (among others) though they were technically a 402...aka a 396. I have an original little 400 torque monster in my 76 Monte Carlo. Used to have a 400 BB in a 67 442.