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Discussion Starter · #1 ·
Hello, I’m new here. I bought my truck with modifications like a dummy. I didn’t realize what I purchased. It was a beautiful truck but now I have a broken crank. I want to sell off the parts and purchase new stock engine. I don’t know what I have on the truck. Can someone help me by looking at pics and tell me what I have? I have more pics.
 

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2007 GMC Sierra LBZ
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476 Posts
Looks like someone put a compound turbo setup on. Do you have a LB7 or LLY?
 

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That's a twin turbo kit of some sort. Could be a SDP or hsp hard to say.
 

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Looks Like a lb7 from the waste gate
 

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Discussion Starter · #5 ·

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2007 GMC Sierra LBZ
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476 Posts
You have got quit a few mods there with a wastgated turbo in the valley on a LLY. You should just sell that thing as is for someone to have fun with if you aren’t into anything past stock. That would be a nice fun setup if it was done right and tuned right.
 

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It "could" be an old MPI compound setup similar to what IdahoRob ran on his 2006 LBZ.
 
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