Damn good info

So what year did the magnum start?

What year did roller rockers start?

I have a 90 360 in a D250, is that a magnum?
Don't know if you watched at all, but I just went through the "prep" and install of a 360 magnum in place of an LA 318 in the past few short videos. Straight forward and not much to it.
P.S. - I know, I don't have a beard so I'm not much fun to watch ! :poke: