Heat crossover passage needs to go?

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dibbons

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Now living at the finish line of the Baja 1000, I have no need for the heat crossover passage, don't need a choke for that matter! After checking historical climate records, it NEVER has reached freezing temperatures here. Sometimes during the summer nights it only cools to 80 degrees. Anyway, the last time I tried to block a heat crossover passage using liquid steel, it ended up disintegrating with time. What is the best permanent and effective "home remedy" to cool down that intake manifold and carb? Thank you.
 
Cut a small piece of .010" thick stainless steel and place it on the intake gasket where the crossover hole is. Also, removing the valve in the exhaust manifold, or at least making it nonfunctional (open) will really help.
 
Weld it up

I thought there were performance gaskets that covered that port?
 
I always had great luck just getting intake gaskets that did not have the passage open. I have never seen an intake gasket burn throuth yet. Not one.
 
Saw a buddy this Summer take a beer can, cut a long rectanglular piece out of the can fold it over and use rtv sealant to seal it over the passage. Said he learned it from an old engine builder
 
Years ago I remember buying 'high performance' gasket sets that included a block off shim to cover it.
 
Yes, fel pro has high performance intake gaskets that have the heat crossover blocked off.


Why make things more difficult than you have to???
 
My HP felpro pinto seal intake gaskets with the heat crossover blocked did burn through after about 3 or 4 summers probably only 3k miles. This is a composite type of gasket with no metal in it. To be fair it is a 11.25 to one street motor that I do rev to 6,500 regularly.
 
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