This listing is for four (4) USA-MADE Hylift-Johnson STEEL body slow leak down roller lifters (tappets) for 1984-99 Harley EVO 1340cc engines. P/N (4) B-2303S. These slow leak down lifters are suited for higher valve spring pressures and higher RPM's. These are machined to a higher standard to provide significantly lower leak down rates for quick pump up, consistent quiet operation, and stability at high rpm.