Lb7 Or Lly [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Lb7 Or Lly


duramaxfarmer06
08-27-2007, 09:24 PM
1GCHK29274E347170 Who can tell me if it is a LLY OR LB7

Unit453
08-27-2007, 09:25 PM
The 8th digit is a 2 therefore its an LLY.

Tolliwacker
08-27-2007, 09:33 PM
X2

Now fill out a sig and tell us about your truck, and Welcome to the site!

duramaxfarmer06
08-27-2007, 09:41 PM
Well i was lookin at it 2 by and i wanted a LB7 but now i have to think about it thanks guys

black_dmax
08-27-2007, 09:44 PM
is there another way to tell what motor i have? because all the pics i've seen it looks like a LLY but idk.

duramaxfarmer06
08-27-2007, 09:44 PM
What number or letter is a LB7

shortcircut65
08-27-2007, 10:58 PM
the 8th digit is a 1 for lb7, lly is a 2

SSchmi5519
08-27-2007, 11:01 PM
Why would you rather have an LB7?

joelykool
08-27-2007, 11:13 PM
Buy the lly and buy the v2 rad if you tow heavy in mountains if your concerned about over-heating, instead of paying for very expensive injectors in the lb7. Don't want to sway you too much though b/c both are great mototrs! JMO.

Durallymax
08-27-2007, 11:14 PM
Black_Dmax you have an LB7 because your truck is an 03 no ifs ands or buts about it.

You can also look for the big EGR tube and at the injectors and the turbo to tell if you have an LB7 or LLY. Basically there is alot less "junk" in the Lb7s engine comp.

KEVINL
08-27-2007, 11:45 PM
it's a toss up crappy injectors or overheating

Tolliwacker
08-28-2007, 08:22 AM
Durallymax,

Some LB7's came with the junk under the hood, my 03 did:(

black_dmax
08-28-2007, 04:40 PM
ok i thought it was a lb7. but after looking at pics in a mag, mine looked like an lly but i dont care about the injectors b/c its under warr. i just dont know if they changed the motor and didnt tell me?

duramaxfarmer06
08-28-2007, 09:20 PM
Well i think im goin 2 buy it anyway any dmax is a good dmax

1HotGmc
08-28-2007, 11:15 PM
The lb7 is the only one with a wastegate off the tubro on the left side if u are looking from the front that will be a dead giveaway

black_dmax
08-29-2007, 09:44 PM
ok ill take a look