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GMPP LSX L92 vs standard L92.... deck/strength

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Old 10-14-2010, 09:52 PM
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Default GMPP LSX L92 vs standard L92.... deck/strength

I have done some research and cannot find a definitive answer

are the LSX L92's deck thickness any thicker or more robust than what a standard L92s deck thickness/strength is??

They state they are 5/8" thick but some say they really are not any different than the standard l92 other than the 6 bolt casting

just wondering if it is worth the 2k for a set of these heads if they will be more robust with boost than the standard l92.... or if i should just spend the 3k for something like the Mast heads

I do not want to switch to a cathedral port because i have my L76 manifold set up the way i like

any input is appreciated
Old 12-23-2010, 02:10 AM
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I have the same question are they better than the L92 factory castings if used without the 6th bolt??
Old 12-23-2010, 10:36 AM
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Believe they are the same cept for 6 bolt. Most aftermarkets are .75".
Old 12-23-2010, 12:43 PM
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The All Pro's have a thicker deck. If u must use L92's definately don't use the stock cast ones.
Old 12-24-2010, 12:17 PM
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I ended up getting some WCCH ported LSA's to try

better casting, will see how they do




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