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Discussion Starter #1
Why is it that my 4.3 is rated at 180HP while the 4x4 and Jimmy/Blazer are rated 190? Then aren't the full size truck 4.3s rated at 200HP?

What are the differences between these engines? Computers? Heads?
 

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Project: Sabriel
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the full size has a different y-pipe, diff cpu settings, and i think a different cam. the jimmy/blazer have the high output 4.3, and you just have the standard output. there is no difference in the heads now, there was a vortec head and a non-vortec head, but im pretty sure all the new ones are vortecs.
 
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