shimming hydraulic roller lifters solid

Not quite a solid conversion, but when I was cleaning my last set of magnum rollers, I happened to have a set of factory ls1 roller lifter in the shop. After tearing them both apart I realized that the internals are the same diameter between the two. So I took the ls internals and put them into my magnum lifter body.

Why did I do this?
We've all seen the abuse and rpms that the ls motors take in stock form, so if they can do it why can't we?

Big thing I noted was plunger travel distance between the lifters.
Ls lifter plunger travel was measured at .160"
Magnum plunger travel was measured at .215"
Magnum body with ls internals measured .130" plunger travel.

Will it actually work? I hope so, the motor is at the machine shop now, and once it's together it'll be going on the dyno for results.