I have a 98 ls1 that I want to put scat rod and forged pistons.do any body no what piston and head milling I need to get 11.0-11.4 cr heads will be tea 243 or tfs 220 cam will be street sweeper ht thanks

 

I did mine at .015" with thin gaskets and had around 11.3cr

 

Which pistons did you have

 

I no some one else built same or similar set up please help

 

Man, if you want an answer shouldn't you give the right info?
Pistons, what size relief in them? in cc please.
And the cam what are its .006' advertised specs?

 

Cam is gonna be streetsweeper ht,don't no what piston or relief.really don't matter what pistons as long as I can get the cr I want.i want to just honed the block to clean up a little engine is still running but with a lot of track nos passes

 

It does matter what pistons you use,and valve relief volume,as that will affect the CR.nobody on this board can give you an asnwer just based on the info you provided.