Max HP from 455 / E Heads ?

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Mar 24, 2011 | 09:20 AM

#1

VikingBlue

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Posts: 483

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

Mar 24, 2011 | 09:32 AM

#2

alek72us

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Joined: Oct 2010

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From: Tooele Ut

Quote:

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

Mar 24, 2011 | 08:27 PM

#3

507OLDS

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Joined: Oct 2009

Posts: 3,814

From: Erie,PA

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

Mar 25, 2011 | 04:47 PM

#4

Run to Rund

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Joined: Mar 2008

Posts: 4,024

Camshaft (as noted above), headers vs. manifolds, and exhaust/mufflers will be the limiting factors rather than heads.

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