MCS-531317 - With HL2T kit to help resist lifter bleed-down when parked. With special rollers and hydraulics. S&S tested up to 7800 RPM; without pump-up. Inner bearing race has an increased outside diameter so more and larger needle bearings could be used. Tappets are

Fitment:
84-99 Evo B.T.; 86-90 XL (NU); All S&S T-series (Evo type) engines. Used with adjustable pushrods