Thread: 400 to 440 Headers
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Old Mar 18, 2011 | 10:31 AM
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73sixpack
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headers and carb. will be ok, but your 400 is a "B" block (I think 360?- late 383 and 400) so you'll need an intake for an "RB" (early 383-413-426 wedge-and 440)
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