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How many HP is a stock 01 Duramax?
 

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300hp for the 2001
 

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dynos around 240rwhp to 250rwhp with roughly 460rwtqr depending on what size truck..
 

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I want to say 300hp 520trq for the 01-04

and

360hp and 650trq for the 05-07

I'm pretty sure thats what I read somewhere but don't quote me on that.
 
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