I can’t see any reason why I’d ever feel I needed 2.02 valves with the small bore and cubes of a 273.
I’d probably use something more like some sbc 1.84’s and call it good.
I like taking the easy path, and 360 blocks still aren’t hard to come by..... or stroker kits for them.
And then the 2.02 heads work fine.
Sometimes avoiding unecessary complications means you get the job done...been thinking more and more of that. If the LA-X comes back, I'll probably go that route and bore enough to not need bore notches. No more lift limits...