318 LA rebuild after losing a valve seat

Also installed the checking springs and used the checking rod to determine my pushrod length using rumblefish's method (install checking rod and extend it until the lifter is depressed .050. I found that length to be 7.125. The stock rods I was running with the stock setup were 7.5. I put one in with clay on the piston just to see what would happen, and I don't think I got 1/4 turn before the valve bottomed out.
Just curious as to what rockers you have now.

And for sure the lifter(s) was(were) on the base circle? I.e., no lift on the lifters whatsoever for the pushrod being measured. I just want to make sure you were not doing something like checking the #1 lifters when at TDC and #1 at overlap... where the lifters are slightly lifted.