So I have been doing a fair amount of reading up on "Drop-in" forged pistons. More specifically about 4032 alloy pistons as they have tighter tolerances and they seem like a better, longer lasting piston for people who are looking to stay under 400 HP. I do have a few questions however....
1. With a new short block what is the bore exactly? I have seen this below, but it talks about the piston diameter (min and max), but not the bore size.
http://www.legacygt.com/forums/attachment.php?attachmentid=79983&stc=1&d=1265554127
So I guess my question is this. What is the stock "A" bore size range? and what is the stock "B" bore size range?
As a follow up question, when a piston manufacturer sells a piston that is stock size (99.5 mm) what is the true size? I ask because it seems like the manufacturer would under size the piston ever so slightly to fit the stock range "A" and "B" bore within their spec.
Those of you with experience in these things, what do you think of this? Am I correct in my thinking?