This listing is for a set of (16) each stock replacement push rods & Roller lifters compatible replacements for 1996-2002 GM Vortec VIN Code "R" V-8 5.7L 350 cid engines. Also fits 5.0L 305 cid  VIN code "M".  VIN refers to the 8th character in the vehicles ID in lower driver side dash. 

These are for Vortec engines, NOT LS engines.

Push rod specifications are as follows: