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By paul2748 - 8 Years Ago
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What thickness metal is best for partially blocking off the heat passage between the intake and the heat?
I tried to search this and I guess I wasn't using the right words
Thanks
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By Sandbird - 8 Years Ago
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Don't know the thickness but the T-Bird parts dealers sell intake manifold gaskets supplied with the metal exhaust restrictors if you aren't aware that they do. Hill's, CASCO,..etc. has them.
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By oldcarmark - 8 Years Ago
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paul2748 (8/31/2017)
What thickness metal is best for partially blocking off the heat passage between the intake and the heat? I tried to search this and I guess I wasn't using the right words Thanks
I used thin Aluminum to complete block Passage. You can't use too thick or the Manifold won't seal to Head. If You are taking out the Heat Riser You won't get really high Temperature Air trying to go through Passage.Thin Metal should be fine.
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By John Didde - 8 Years Ago
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you can buy intake manifold gaskets with the holes partly blocked, Concourse has them and many other suppiers.
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By paul2748 - 8 Years Ago
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I know about the gaskets and have a set but also have some gaskets with the regular size hole and want to use them up so I asked the question
Again, got a thickness that is ok?
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By MoonShadow - 8 Years Ago
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I've used both tin cans and aluminum cans to make block offs. I've even seen some stuffed with a ball of aluminum foil.
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By slumlord444 - 8 Years Ago
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I use some thin stainless steel material that I had laying around. Doesn't neet to be very thick. I think an aluminum beer can would be a little too thin. As stated you don't want it to be very thick or it won't seal right .
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By DryLakesRacer - 8 Years Ago
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If you still have the exhaust flapper on the passenger side you may want to wire it open. With the crossover blocked it can rattle. Intakes like a little heat so I used the truck gaskets and wired my flapper open. Also keeps the passenger side from having so much condensation water. Good Luck.
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By texkbc - 7 Years Ago
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I did not block mine and I wish I had. The center area of the manifold gets 200-220deg. Will this damage the motor?
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By charliemccraney - 7 Years Ago
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It shouldn't damage the motor. It may burn off the paint in that area.
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By PF Arcand - 7 Years Ago
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Thoughts on completely blocking off the heat crossover; If you drive in northern latitudes other than right in summer, carburetor icing could be a problem.
It doesn't have to be freezing out to have carb icing, due to venturie air velocity. And if the exhaust manifold divertor is disabled & the crossover completely blocked, isn't it going to at least partly disable your chokes operation? (assuming the choke isn't electric) Unless it's a race engine, the truck semi closed gaskets might be a better idea ?
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By 2721955meteor - 7 Years Ago
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PF Arcand (3/29/2018)
Thoughts on completely blocking off the heat crossover; If you drive in northern latitudes other than right in summer, carburetor icing could be a problem. It doesn't have to be freezing out to have carb icing, due to venturie air velocity. And if the exhaust manifold divertor is disabled & the crossover completely blocked, isn't it going to at least partly disable your chokes operation? (assuming the choke isn't electric) Unless it's a race engine, the truck semi closed gaskets might be a better idea ?
truck int gaskets ar restricted by 50% and are usually in oh kits
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