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Originally Posted by John@Scoggin  I would not run as low as 8.9, but that is just me. I would recommend a callies upgraded rotating assy from any sponsor as long as it is also balanced and matched with boost rings. You will need a dish to get the Cr you want, but you also have to factor in head cc and head gasket thickness/bore as well as the bore size for the LS3 you are running. then go from there. |
I'm playing around with CR still. I wanted to set the engine up once and then add the turbos later. I was willing to take a HP hit with the lower CR until I added the turbos but I just got done with the new LS build book and didn't realize that turbo pistons have a different ring placement than NA pistons. Since I'm going to have to tear down the engine for the turbo build I will probably build a higher compression NA motor. On another note, are you guys selling the new GMPP rotating assemblies? I just got the new catalog and they looked promising.
