Well how did you order them?
When you contacted your distributor he MUST have asked you what you wanted.
An over bore, what compression etc. 11:1 sounds a bit high f you didn't ask for them.
I wouldn't guess. You need to know if they are shelf stock or if they were custom made. If so them what specs were given? combustion chamber cc, quench area, bore size etc.

 

I know. I asked fot that compression, but I just want to make sure that it was right. But I called ROSS and they are fine. They were not of the shelf.

 

quench area? is that the area thats between the head[valves] and were the pistons at top dead center?

 

This question is for people that bought the pistons:

Did you use your stock pins? I received the pin locks but no pins.

 

Technically the stock pins should work. I have received pins with every set of pistons I've ever purchased. You might want to give them a call to see if they were overlooked.

 

What brand did you had?

 

I've had JE, Ross and Wiseco and they all came with the pistons, rings, pins and locks (and stickers!!!!). I'm using Wiseco pistons in my engine now.