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Old Dec 21, 2003 | 06:54 PM
  #1  
There Goes The Neighborhood's Avatar
There Goes The Neighborhood
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From: Normal, IL
Compression

How about this. The motor in the race truck(473 cu. in. 460), after assembly, broke a 300 psi compression gauge!! Wondering what you guys have done. Compression figures right around 14.5:1, enough to warrant 114 octane race fuel.
 
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Old Dec 25, 2003 | 01:40 AM
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From: iowa
damn that truck needs a serious starter.
 
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Old Dec 25, 2003 | 12:41 PM
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you ain't kiddin'. Stock starter lasted three times, and barely turned it over hot.
 
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Old Dec 26, 2003 | 09:49 AM
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With 14.5 CR your only running 205 psi at the compression tester. Unless my math is just way off this morning. What are your #'s for the heads, pistons, gaskets, and so on?
 
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Old Dec 26, 2003 | 08:48 PM
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Heads 68 cc
pistons .060 over stock, have 1 valve relief, approximately 3cc
gasket 10.8cc
Zero deck clearance
3.85 stroke
 
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