assuming every set of pistons ebay shows me. when i search for D15Z1 pistons has the -16.1cc dome & 27.75mm comp height the zeal auto works calculator says they have. any of them should work. my question is which of them look to be of the best quality???

http://www.ebay.com/sch/i.html?_trks...at=0&_from=R40

 

NPR seem to be universally accepted as good. I've used them without issue but I've also got some Evergreen pistons I'm going to be trying out in a bit. I don't see them being any different really so if you're just doing a standard rebuild they should be fine.

 

Sorry for being a stickler but did you actually mean "excepted" or "accepted"?

 

DOH!!!! Funny thing I was looking at that thinking something looks wrong hahahaha

 

I read that too about npr. Will they stand up to +9.5.1 to -10.5.1 compression