The COMP Cams High Energy hydraulic flat tappet lifter is built for Oldsmobile V8 260–455 and Pontiac 265–455 applications. It uses a patented constant orifice metering valve and a powdered metal pushrod seat for controlled oiling and wear resistance, provides quicker response and improved performance, and is specified with a .842" diameter and roughly 97g weight where listed.
COMP Cams Hydraulic Lifter Oldsmobile/P