My build is the following..

2004 Iron 6.0L, bored 0.030" over, stock crankshaft, Callies compstar 6.125" rods, Ported PRC stage 2.5 317 heads (72 CC) with LS9 camshaft, stock rockers, LS9 head gaskets.. will be turbo charged (10-15 lbs of boost) with methanol injection, 80# injectors

I am looking at the Wiseco PN K444X3 pistons.. I am looking for 9.1 comp ratio and according to my math these are the right pistons..

Does any see any problems?

Is this the correct piston?

http://www.wiseco.com/Catalogs/Automotive/Chevrolet.pdf

 

i believe those are a -11cc piston which should put you right at 9.0:1 comp. i have the same pistons and are working great for me.

 

I'm running one with a little more dish but so far so good.

 

I run these pistons no problems. at zero deck you should be a little over 9:1 with the 317's and a 50 thou gasket.

 

Awesome! Thanks, that is what I had figured as well...
I found them for $729 shipped, anyone know of a better price?

 

A little more?! Lol yours are -25cc if my memory serves me well

 

Yeah, my heads have been cut alot. My combustion chambers are in the neighborhood of 59-60cc so I had to go deep on the dish to drop the compression. If anything, the deeper dish makes them weaker and they seem to be holding up real good. I just had the motor apart to do bearings.