Harley engines don’t “run great”; if you’re lucky they run at all. That long stroke 45 degree V engine was a bad design for an engine in 1920 or whenever it came out and they’ve never really fixed it.
But with a single lobe crank and no distributer it made for painful riding and weird vibrations and exhaust. Which has made Harley more famous? The exhaust note or the oil leaks?
I think the V-Rod is a 60 degree V.