511 inch LSx????

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Old Aug 10, 2006 | 04:45 PM
  #21  
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A big thanks to John Beck @ Beck Mechanical by the way. Another great Manifold

It is definitely a little better then stock.
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Old Aug 11, 2006 | 08:27 AM
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More Pics@!







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Old Aug 11, 2006 | 08:51 AM
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SWEET! Looking good Gray!
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Old Aug 11, 2006 | 09:14 AM
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that intake looks sick
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Old Aug 11, 2006 | 04:29 PM
  #25  
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i'll take a 511 with some C6R heads and one of those manifolds bunged for two wet stages
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Old Aug 11, 2006 | 05:01 PM
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it is already bunged for one
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Old Aug 11, 2006 | 06:09 PM
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perfect, i'll just run one big shot instead of two moderate ones. box it all up and sent it to Fort Worth.
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Old Aug 12, 2006 | 12:33 AM
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Originally Posted by kumar75150
apparently you do or you would be running more compression
More compression on what, my 69?? Thats what you get when you put RAIII heads on a 455. But then alot of people dont speak vintage Pontiac, but thats ok.
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Old Aug 12, 2006 | 09:59 AM
  #29  
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Also, in older Pontiac motors, since they rely on a bore/storke ratio that leans more toward making torque, too much compression actually works against itself slowing the engine down. You might not get much more than 550 hp out of a reliable 455, but making 600+ ftlbs is like falling off a log.
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