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03-30-2020, 12:39 AM | #11 |
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Re: Cylinder head heat crossover?
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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04-02-2020, 01:01 PM | #12 |
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Re: Cylinder head heat crossover?
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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04-02-2020, 01:50 PM | #13 | |
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Re: Cylinder head heat crossover?
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04-02-2020, 06:16 PM | #14 |
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Re: Cylinder head heat crossover?
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 |
04-02-2020, 09:00 PM | #15 | |
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Re: Cylinder head heat crossover?
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04-02-2020, 11:35 PM | #16 | |
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Re: Cylinder head heat crossover?
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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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04-03-2020, 12:41 PM | #17 |
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Re: Cylinder head heat crossover?
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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04-03-2020, 08:22 PM | #18 | |
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Re: Cylinder head heat crossover?
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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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04-03-2020, 10:53 PM | #19 | |
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Re: Cylinder head heat crossover?
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