Wat Will The Compression Ration Be On A Lq9 With The Stock Heads Milled .030

 

About 10:1 with stock gaskets.

 

10:1? Stock Is 10.5:1 How Would I Loose Compression By Milling?

 

Stock is 10.1:1 with an LQ9. I'm not sure how many cc's 0.030 worth of milling will remove (have a cold, brain won't work ) but I think it takes you down to the 65cc range with 317s.

If that's right, then after the mill you'll be around 11ish:1 with LQ9 flattops and MLS gaskets.

 

I know that 64cc chambers and a LQ9 will net you a 11.18:1 using the stock MLS gaskets. your looking at around 11.0:1...

 

He's asking on my behalf. I ran the stock gm gaskets, whatever they are but don't know how all this works, so don't really know what comp. I am running.
Thanks.

 

Sorry, I was thinking 9:5 for some reason....