Long valves on W2's with .600 lift?

Stopped by my engine's shop todsy. I bought a few wheel bearings, a couple spindle nuts that I need plus some Bert Blue Magic synthetic transmission fluid for the race car transmission and a couple other small things.

I decided to do a short fill in the water jackets to help stabilized the cylinders. Baxter will do it for me... they stock Hardblock brand and use it on quite a few engines. I also talked with them about the piston rings I got along with the pistons from Ractec. They sent along a set of Hastings Performance rings which, I believe, are the ductile moly top ring and the Napier second ring. The shop foreman says they also use that ring and it's been a good performer for them...so Hastings it is.