I don't think anyone is referring to a 360. 273, 318, 340 cranks will install and run. Whether they are balanced, or "as strong" in a given app, is a different matter. I once put a 273 crank in a 340 because it was all I had and I didn't know any better. Ran just fine LOL. This was a stick, so the converter register was not an issue, and I didn't even know about THAT, then.