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#11 |
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Join Date: Aug 2010
Posts: 204
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hi, I found .015 stainless sheet works excellent. used same ones for last 10 years, has never burned out or blew a hole through it. mine are 2" by 2 1/2 "just food for thought.
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#12 |
VIP Member
Join Date: Jun 2007
Location: from Vancouver BC Canada, now in Nova Scotia
Posts: 1,259
Likes: 246
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On my 390/427/428 FE Fords, I have always blocked the exhaust crossover opening in the intake gaskets with a piece of an old butter knife, trimmed to fit inside the slot in the gasket. I have tried the gaskets with the unopened crossover holes, but they always burnt thru in short order. I always found it interesting that NHRA will not allow you to fill the head passage down into the bowl, yet the approved Edelbrock heads have no provisions for the crossover passages at all, but thats OK.
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NHRA 6390 STK M/S 85 Mustang |
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#13 | |
VIP Member
Join Date: Dec 2001
Location: Arkansas - In the middle of everything.
Posts: 1,983
Likes: 54
Liked 726 Times in 177 Posts
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#14 |
VIP Member
Join Date: Oct 2008
Location: Somerset,Ky
Posts: 1,303
Likes: 198
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I have always used zinc...that's what Mondello sold....
I buy a ingot of zinc alloy from Mc Master Carr industrial supply it is about 12'' long 3'' wide and 2'' thick will do 2-3 sets of SBC. Olds might get 2 sets out it.. next set I do I may melt down some old pistons since I accumulate about 6-8 55 gallon drums a year that I scrap... I have blocked off a SBC intake.. I filled all the heat riser and EGR passages... intake was cracked under carb so I filled it to prevent vacuum leaks to EGR passages and it has been through teardown.... I think filling head is better to keep heat out of heads |
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#15 | |
Member
Join Date: Mar 2002
Location: Brownstown, Mi 48134
Posts: 194
Likes: 32
Liked 10 Times in 5 Posts
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#16 | |
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 629
Likes: 72
Liked 279 Times in 110 Posts
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"No bubble packs here" I could of sworn that was you standing in the window waiting for the UPS truck intently LOL |
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#17 |
VIP Member
Join Date: Nov 2001
Location: Florida
Posts: 1,539
Likes: 34
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On applications that can use sheetmetal to block the crossover, I've had good luck with aluminum (thicker than cans) if glued & coated on the inside with a good hi-temp silicone to help insulate it.
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LOCOMOTION Racing |
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#18 | |
VIP Member
Join Date: Oct 2008
Location: Somerset,Ky
Posts: 1,303
Likes: 198
Liked 116 Times in 48 Posts
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the scrap yard is only about 3-4 miles away and I go about 25-35 mph and I have been nervous if I would make it there... |
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#19 | |
Senior Member
Join Date: Nov 2005
Location: Verrry South Jersey
Posts: 533
Likes: 127
Liked 230 Times in 122 Posts
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