3.9 compression ratio
Posted: Tue Dec 02, 2008 4:17 pm
Hi I am wondering if anyone knows how they get the two different compression ratios with the 3.9 rangie engine? Mine has the low 8.13:1 and want to step it up while I have the engine apart. I asked a few landy people I know but thay didnt know. Do thay have different dish in the piston crown or smaller combustion chambers in the heads?