Hawkcmc

iTrader: (1)

Ok so here is the deal, I am going turbo this winter hopefully *Fingers Crossed*. So I am going to lower the compression anyways, so the way I figure it is if I get a pair of 6.0 heads I get all of the benefits of the ls6 head but a lot less and its helping me drop my compression. Does that sound right to you? I am also getting forged pistons so I will just get thos dished to the correct amount to get my compression dropped the rest of the way. I am not missing anything am I? Can anyone tell me what the chamber size is on a 6.0 head? Also any suggestions on a pistons size to get my compression to an 8.5 or so? Thanks!

CMC

JZ'sTA

iTrader: (23)

72cc's, and somewhere between a 8cc dish and 14cc dish depending on gasket thickness and piston height.

PREDATOR-Z

72 cc with .060 MLS and 11cc dish pistons will get you 8.55 with .005 out of hole piston.

You can use this CR calculator to figure it out and enter (-) negative value for out of hole and (+) for in hole piston.

http://www.rbracing-rsr.com/compstaticcalc.html

Hawkcmc

iTrader: (1)

What exactly is an out of hole or in hole piston? Thanks for the excellent Information!

CMC

PREDATOR-Z

The piston in the cylinder at TDC will either be flush, or stick out or be slightly in the cylinder.
That measurement is taken after install.