This kit is designed to help you assemble your short block into a complete engine. The kit includes 8 hydraulic roller lifter powdered metal tie bars, 1 retainer plate and 2 bolts. The kit fits 1985-01 302, 1994-97 351W, 1996-04 397-M-6010-A4/A58/A351/B351/C351/R302/R351/R352/S351/V351/W351 race blocks. For production roller cam blocks only, non-roller cam blocks use 397-M-6500-S58 lifters.