push rod length for 3.8sc (Page 1/1) ttt123 JUL 16, 07:28 AM Quick question, how do you guys use the zzp pushrod length checker? the directions say to turn the rocker bolt to the "snug position" at zero lash. is that meaning take the bolt all the way down and screw the length checker up to zero lash and then 1/2 turn more(=0.050 per 1/2 turn) for preload and that's my length to order? if so I'm getting 7.045... does that sound right? XP cam, L67 lifters, zzp rockers, fresh valve job on the heads. thanks for the help guys.