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i am building new 363 am thinking about putting my old 347 in my Bronco just looking for torque thinking about using stock 302 heads, has anyone tried this combo with a small cam tks Butch
 

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I have not, but I think you'll be looking at the equivalent of a stockish 351W truck, which also came with 302 heads. To a degree, cubes are cubes. It's the breathing (heads, cam, intake and exhaust) that make the primary difference in performance.

David
 

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Bingo, youll be wasting time/money with a 363 and stock heads

The larger the cubes, the worse the heads get.
They won't really get "worse", if anything it'll make the same power or MORE and at most likely a lower rpm.
 
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