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Max HP from 455 / E Heads ?

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Old March 24th, 2011, 09:20 AM
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Max HP from 455 / E Heads ?
What would be the most HP a good engine builder could get out of a 1970 455 with ported E Heads, say 10:1 compression, stock exhaust and an upgraded cam ?

street/strip car...nothing crazy...
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Old March 24th, 2011, 09:32 AM
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Originally Posted by VikingBlue
What would be the most HP a good engine builder could get out of a 1970 455 with ported E Heads, say 10:1 compression, stock exhaust and an upgraded cam ?

street/strip car...nothing crazy...
i would say 400-450 hp. with that compression and i dont know what with stock exhaust. if u raise the compression and use race fuel u will get more.
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Old March 24th, 2011, 08:27 PM
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There's a lot of variables that would play a part in the result.Getting the right camshaft is one.
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Old March 25th, 2011, 04:47 PM
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Camshaft (as noted above), headers vs. manifolds, and exhaust/mufflers will be the limiting factors rather than heads.
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