djoif3

what compression ratio will i have with a set of flat top pistons and an stock 4"bore LQ4 with 64cc 243 heads? is it worth buying a set of flat tops versus the dish to gain compression?

FAD2BLK93

What headgasket thickness?? I would say with an .041 thickness...10:8 ish. But depending on how big of a cam u are going to run u might want to consider valve reliefs so u have PTV clearence. Just my thought...thats what i am going to do. And yes it is worth the flat top over dish! IMO

PREDATOR-Z

The answer to this question is relative to the cam desired. Obviously milling is the cheapest route if the cam will clear with proper margins.

Redbull87

iTrader: (3)

easier to mill the heads and still use stock mls gasket and have 10.8:1 roughly.Thats what im doing and keeping stock dished pistons with 243 heads.