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Old August 15th, 2015, 06:48 PM
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exhaust manifolds

Will 330 exhaust manifolds work with/on 455's? I read somewhere that some 455's used small block manifolds. If so, any loss of low end torque? Thanks to all.
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Old August 15th, 2015, 06:53 PM
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I would think that the loss would be on the top end. That is if the 330's are smaller.
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Old August 15th, 2015, 07:27 PM
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another exhaust question

My real question is, which factory exhaust manifolds would fit/work the best in this application? Thanks to all!! Main interest is low end torque nothing over 4500 rpm.
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Old August 15th, 2015, 08:04 PM
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I merged your 2 threads so you don't have duplicate answers. If want to go with aftermarket manifolds, check out Thornton

http://thorntonmusclecars.com/produc...aust-manifolds
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