Is your Truck an LB7 or an LLY?

[Power Crazy]

01, Chevy LB7 here..

[Rollin Smoke Diesel]

Originally Posted by 05_LLY

Hers an up dated list of vin #'s and engines to include the 06 lly and the lbz,

8th Vin #1-LB7 300 hp
8th Vin #2-04.5-05 LLY 310hp autos only, 300 hp manual trans and 4500/5500
8th Vin #3-06 LLY ratings are the same as vin 2
8th vin #D-LBZ 360 hp auto only, not an option in manual trans or 4500/5500 trucks>

This should be a stickey.

[deereboy80]

I have an LB7 w/ no cat. I don't care for more restrictions than I am forced to have.

[Conantb]

The easiest way to tell is if you oil filler cap says "Motor Oil" in french (huile de moteur) it is an LLY. This is directly from the owners manual.

[duramaxbd03]

LB7 here
no cat and loving it