318 hydraulic lifter preload.

MOA said

The shop that rebuilt the heads is a well known So. Cal. machine shop with 40 yrs in business. I'm not going to bad mouth them unless it's warranted, they are helping me out and I'm probably the PITA customer. :violent1:

I spoke to them and they are going to surface the head -.020, no charge. I didn't demand anything, they offered without me having to ask. I would have paid the surfacing charge and had no problem with it.

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Wow, that is a very good outcome. Glad it is working out, and my hat is off to the shop! Make sure you clean the bottom surfaces well when you get them back.

Good measurements too. You might want to get 3 new rockers on those 3 low measurements to see if that will tighten them up. And check the rocker shafts at those positions to see if they are worn a lot.

Computed static CR will end up around 7.5 if you have the pistons with the 4 valve reliefs (10 cc's total relief volume), and around 8.2 with flat topped pistons. That assumes starting with 68 cc combustion chambers, than a .020" head mill, and using .051" Felpro head gaskets. Yeah, 318 SCR's are looow....