TrickyTransAm

I kinda thought that was the process.
So you set the pushrod length checker to a known value, Re-install the rocker arm, re-torque to 22ft lbs, and then ____? How do you know when you are good?

No, I don't want to shim the pedistals. I'm just trying one method of selecting pushrod length by where it contacts the valve stem.

I brought some DYKEM Red home from work today. Hoping this works better than the black permanent marker. With the marker, as soon as the rocker contacts the stem, the mark is wiped off.
I'm going to try it with the stock truck pushrod, and with the 7.350's I got from you folks. Hopefully I see a difference in wipe pattern.

Unless you think I need to do something different - I'm open for suggestions. I'll be ordering the hardened pushrods through you guys - your service has been great so far!

Sales2@Texas-speed

iTrader: (5)

No, we adjust it until we get to zero lash, and then count the number of turns on the tool to get back to the shortened length of 6.800". Say it takes 11 turns to get it back to the short length after you found zero lash.

11 turns*.050" per turn on the tool = 0.55"
6.800" (tool length) + 0.55" = 7.350" zero lash length
Now add your preload, call it 0.050" for a GM replacement lifter...7.350"+.050" = 7.400" pushrods.

**This is assuming you already shimmed the rocker arm pedestal if needed to correct the swipe pattern**