12.5:1 PRO Head

[Killer Time Racing]

Stock head rechambered to 12.5 for 8000+ Turbo applications .. Should allow 8-10# on Premium ..

New/used its a used head with no detonation ..

$150 shipped

 

[jhillam]

What is stock compression? Can you post picks?

 

[Sheetmetalfab]

What is stock compression? Can you post picks?

Stock 2011 head is 12.1-1

The 2013 head i had was factory cut .010"
I don't know what the exact CR. Is.

Maybe a 2013+ head might leave some area to remove material to rechamber?

My par head i put on my 2011 was 12.5-1 and it bumped my static compression up 10#.