Diesel Place banner

1 - 5 of 5 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter #1 (Edited)
Whats the diffrence?

Im in the market for a duramax and was just wondering what the diffrence is?

Does one respond to performance modifications better?

Thanks.
 

·
Registered
Joined
·
1,457 Posts
LLY has a variable vane turbo (VVT). Some of the LLYs have problems with overheating. LB7s have had problems with their injectors and has a fixed vane turbo. LLYs tend to get a little worse fuel economy than the LB7s. I'm not an expert, but for the most part, the people that had a LB7 and traded in on a LLY wish they didn't. Either way, there are little problems with both. I have no complaints with my LB7 though.
 

·
Banned
Joined
·
1,214 Posts
i like my LLY just fine, thanks :)
 

·
Registered
Joined
·
1,796 Posts
basic lly has emission garbage on vehicle.lb7 not as bad
lb7 injector issues but extended warranty on that concern is
200000miles i think
lly has some reported overheating and no fix from gm but it
only happens with heavy load up grades or constant accell
for long periods
i personaly own lly cant say much about a lb7 though but
i wouldnt give mine up at all love it just have your normal
warranty issues with any brand.i cant complain about my milage
either considering 7600lb truck good luck
 

·
Registered
Joined
·
5,108 Posts
please see the link in my sig that says "What engine do I have?"
 
1 - 5 of 5 Posts
Top