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12-07-2010, 07:22 PM
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#1 |
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Registered User
Join Date: Feb 2003
Location: Iowa
Posts: 974
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decking 317 castings
I want to take my lq4 from 9.5:1 to 10.5 or 11:1, I was hopeing I could get this by decking the heads. If I took .030 off the head gasket surface how much would that shrink my chambers?
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1970 c20 converted to c10 sleeper 1979 c20 the wood hauler 1991 honda civic daily driver spray and pray baby |
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12-08-2010, 10:00 AM
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#2 |
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Registered User
Join Date: Sep 2005
Location: sc
Posts: 1,203
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Re: decking 317 castings
30thou is about what most are saying gets them into the 10.5 range. you going to do anything else like valve job/etc b/c that factors in too.
dont forget to change your valve springs.
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71 Cheyenne C10 LWB cam'd 6.0/T56 Swap |
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