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muddiejeep
MMT F.E.
Joined: Tue Jan 13, 2009 6:24 pm
Posts: 761
Location: New Orleans, LA.
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 decking heads how much to deck the heads? I hear everything from 0.020-0.050
_________________
When in doubt, throttle out.
18x60 prodrive w/36 prodrive
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| Tue Feb 01, 2011 5:17 pm |
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take'emgator
MMT Super Elite Member
Joined: Mon Oct 19, 2009 6:38 pm
Posts: 10201
Location: SETX
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Re: decking heads Leave them alone, do carb and exhaust
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| Tue Feb 01, 2011 5:19 pm |
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muddiejeep
MMT F.E.
Joined: Tue Jan 13, 2009 6:24 pm
Posts: 761
Location: New Orleans, LA.
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Re: decking heads
_________________
When in doubt, throttle out.
18x60 prodrive w/36 prodrive
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| Tue Feb 01, 2011 5:20 pm |
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take'emgator
MMT Super Elite Member
Joined: Mon Oct 19, 2009 6:38 pm
Posts: 10201
Location: SETX
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Re: decking heads oh ok
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| Tue Feb 01, 2011 5:26 pm |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm
Posts: 16915
Location: Rowlett, TX
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Re: decking heads
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| Tue Feb 01, 2011 5:27 pm |
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muddiejeep
MMT F.E.
Joined: Tue Jan 13, 2009 6:24 pm
Posts: 761
Location: New Orleans, LA.
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Re: decking heads going with SS valves with valve job, and springs are already shimmed.
_________________
When in doubt, throttle out.
18x60 prodrive w/36 prodrive
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| Tue Feb 01, 2011 5:37 pm |
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50fps
MMT 1000 Club
Joined: Tue Jan 13, 2009 6:42 pm
Posts: 2377
Location: West Coast Wisconsin
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Re: decking heads Does anybody have a source for stock size stainless valves?
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| Tue Feb 01, 2011 5:49 pm |
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XGEN-DUCKMAN
MMT Pro Member
Joined: Fri Jan 16, 2009 3:51 pm
Posts: 195
Location: BackWaters of Wisconsin
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Re: decking heads X2.....
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If I can't Break it, it can't be Broke.............................
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| Tue Feb 01, 2011 5:52 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: decking heads What is shimmig and why does one do it? I'm thinking the decked heads shorten the distance between the stem and the rocker so one has to make up that distance by placing a washer to bring the spring and thus the rocker closer to the stem to return the spacing back to factory spec. I still not sure where the shim is inserted, however. Am I close?
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Tue Feb 01, 2011 5:54 pm |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm
Posts: 16915
Location: Rowlett, TX
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Re: decking heads
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| Tue Feb 01, 2011 6:04 pm |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm
Posts: 16915
Location: Rowlett, TX
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Re: decking heads
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| Tue Feb 01, 2011 6:05 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: decking heads So one can shim a valve or a valve spring, but its the later of which one does after decking heads. Correct?
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Tue Feb 01, 2011 6:34 pm |
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muddawgchuck
MMT F.E.
Joined: Fri Oct 01, 2010 9:22 pm
Posts: 959
Location: Spurger Tx.
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Re: decking heads
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18x54 WC custom
36PD EFI
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| Tue Feb 01, 2011 6:40 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: decking heads
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Tue Feb 01, 2011 6:43 pm |
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pokey79
MMT 1000 Club
Joined: Mon Nov 15, 2010 4:50 pm
Posts: 2282
Location: Circumcised, Louisiana
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Re: decking heads u shim ur springs to give u more spring tension so u can turn more rpm's before u float ur valves u can do it with or without shaving ur heads!!!!!!
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| Tue Feb 01, 2011 6:44 pm |
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deadbird8
MMT 1000 Club
Joined: Wed Feb 04, 2009 7:50 pm
Posts: 3833
Location: Old East Dallas, Texas
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Re: decking heads
_________________
Excel 1851F4 w/ MB35HD+R CDI with a little bit of this and little bit of that
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| Wed Feb 02, 2011 5:51 am |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm
Posts: 16915
Location: Rowlett, TX
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Re: decking heads
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| Wed Feb 02, 2011 8:30 am |
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drake1
MMT Addict
Joined: Wed Jan 14, 2009 6:57 am
Posts: 659
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Re: decking heads Hard to keep those seats from warping. Best to actualy get older heads with run time on them then recur seats and lap in stainless valves. The valves we use are stock size.
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| Wed Feb 02, 2011 5:03 pm |
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