Which FWD pistons to use in a 3.4/3400 hybrid?

[mongo]

I have a 95 3.4 that I am just about to purchase all of my internals for. I plan on using a set of aluminum heads from a 02 Grand Am. I know I need to use dished pistons but there are several dishes available. Which dish do I need? I would like to keep my compression in the 9's so I can run pump gas...

Also, does anyone have an opinion on Mahle pistons?

Just to clarify a couple of points, I saw a thread (elsewhere) indicating that you must use the same dish as the motor the heads came from. I was TOLD my heads came from a 2002 Grand Am but I can't prove that. I have also seen a post that indicates there was a flat tappet motor that used the Gen II aluminum heads so custom push rods are not necessary for me to complete my swap...

[mongo]

Thanks...

[IsaacHayes]

use 3400 pistons and you'll be fine. then you'll be stock of what a 3400 is...

I would still check your rod length to make sure your pushrod geometry lines up.

[mongo]

Thanks. That is what I wanted to hear. I would hate to put this thing all the way together just to find out I have to take it COMPLETELY back apart because I put the wrong pistons in!