Is my truck an LB7 or LLY?

Big Smoky

Former 35er Electrician!
Joined
Jun 25, 2007
Messages
694
So I just bought an '04 GMC 2500 which I love! The only problem is I can't figure out if its an LB7 or LLY. Whatt are some good ways to tell? Heres the VIN if that helps 1GTHK23234F193477. Thanks
 
I can see them. Or at least the top where the wires go in.
 
The 8th digit of your vin is a 2, you have an LLY
 
Pretty sure its a lly, the only thing that you can see on a lb7 is the fuel line, The lly also has a variable vane turbo
 
Sweet. Thats what I was hoping for! I was really hoping for an LLY for the variable vane turbo and the better injectors.
 
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