How can I tell if my engine LLY? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: How can I tell if my engine LLY?


Truckster
11-23-2004, 11:00 AM
Can I use the VIN number or some other method to identify my truck as being a 2004.5 or 2004? I'd like to know whether I have the LB7 or LLY engine.

towin43
11-23-2004, 11:11 AM
Open your glove box and look at the options code sticker for the LB7 or LLY code. Also, the eighth digit of your VIN will be a 2 if it is an LLY.

Truckster
11-23-2004, 11:59 AM
Thanks! Looks like I do have an LLY after all.

Bill Gisse
11-24-2004, 08:12 AM
Injectores are installed outsie of rocker arm covers.