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  1. #1
    Jr. Engineer
    Join Date
    Aug 2010
    eas' bum fuk, maine

    Default 4.3l exhaust manifold question and possible idea

    so i got looking at pictures of my old 1985 gmc sierra with a carbed 4.3l and i noticed the exhaust manifolds look a hell of a lot nicer flowing then whats on my 01 4.3l. what do you guys think the chances are of swappin them over and getting any gain from them? obviously the head pipes on my 01 will need to be reworked but thats minor.

    compare the two pics
    Click image for larger version. 

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    "i dont think you got the picture. i got a beautiful picture. this baby happens to have an extra turn of speed, which is the only thing i care about. you dont understnad what happens do you? they make cars. they make 'em exactly the same way. one or two of 'em turn out to be something special. nobody knows why. i know why. i may be kiddin' myself, but i think i can make somethin' out of that sad little bucket of bolts." ~ Tennessee Steinmetz

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