Compression on the LLY [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Compression on the LLY


danhercules
05-10-2004, 05:15 PM
Dose any one know the compression ratio on the LLY? Just want to know. Thanks.

Colorado Kid
05-10-2004, 06:07 PM
It is 17.5 :1 on the LB7, and I don't recall any mention of a change, so I'm pretty sure it's 17.5:1 on the LLY too.

Zeeb
05-10-2004, 08:36 PM
17.5 is what it says on GM's media web site for both engines.