I seriously considered roller hydraulic lifters as my late model 427 side oiler block IS drilled for hydro's. I get the impression those late model side oiler blocks are called "juice blocks".
Anyway, my gawd man, I about fell over when I saw the price of hydraulic rollers. Those things gold plated or something? MOST expensive lifter a guy can buy!
My "Ross" pistons also appear to carry a high price tag also, higher than any other piston I checked. I'll be keeping those!