I have a pair of Harland Sharp rollers, and they have about 5-10k miles on them(street). I'm planning on building a 540 and wondering if I should just sell these and get some new ones?

Any recommendations?

I'd think it depends more on what your 540's lift and springs are going to be like. There are more than one good engine builder using HS on some of their big stuff, Reher-Morrison included. Unless you're going to be running really stout springs, they'll probably be fine.

i just built another bbc and i just re-used my harland sharp which have roughly that many miles on them....i say its alright...thats my .02