COMP CAMS 821-16 SOLID / MECHANICAL FLAT TAPPET LIFTERS (16) Designed & manufactured using the tightest tolerances in the industry for ultra-precise construction Oil metering band is milled to exact depth to prevent too much oil from being delivered to the top of the engine Face of the lifter is ground to precise radius for proper break-in & guaranteed longer life APPLICATIONS Chrysler Small Block V8 273-360 Big Block V8 B Series 383-440 ('58+) Big Block V8 Hemi 426 SPECIFICATIONS .904” Diameter • 95g Weight • 1.63” Seat Height