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Old 02-12-2009, 10:43 AM
 
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what can i expect

what can i expect from a 496 with 781 heads and a CR around 8.5-1 ... im jsut lookign for an idea

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Old 02-12-2009, 12:00 PM
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HI,
a bb car that will run on 87 octane without detonation.
what were you looking for?
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Old 02-12-2009, 03:27 PM
 
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i mean power wise i know u will need the cam spec btut im not sure i think something with 544 lift... would i beable to run 87 with 9-1
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Old 02-12-2009, 03:29 PM
 
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jsuttryi nt oget an idea

Last edited by 454cutlass86; 02-12-2009 at 03:43 PM.
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Old 02-15-2009, 11:28 AM
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f-bird 88

click on a thread with member "f-bird 88, he can tell you...
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Old 02-15-2009, 11:38 AM
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Tell people a little more about the engine other than "496, 8.5:1 and .544 lift" and somebody might be able to give you a little more of an idea.
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Old 02-15-2009, 11:48 AM
 
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welll there isnt much to the engien right now im tearing aprt my 454 i have a good deal ona forged crank 4.250 im looking to get a set of 781 have them ported with bigger valves the cam will really be decied after the engine CR is known
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Old 02-15-2009, 02:25 PM
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That CR is a lil low for a .544 lift cam unless it only has about a 175 degrees of duration.
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Old 02-15-2009, 11:39 PM
 
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i thought so i know the cam that is in my engien now it supuse to have somthing like 540 lift not sure on the duration
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