Roller lifters

Morrel solid rollers, this set for 2 years on the street turning 6500 rpm. They already had the lifter body design that now hughes,lunati, mrl have barrowed and advertise as working with certain blocks that have the lifter bores counter sunk cut too far. For years most other designs were dumbbell and bleed off too much oil and have no oiling to the rollers, morrels have none of those problems.