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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Stewart G Griffin on January 03, 2014, 01:40:11 am
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Does anyone know anything about these header-ish exhaust manifolds off of a 4.3 v-6?
(http://i223.photobucket.com/albums/dd31/sencraig/0012_zps3b406dac.jpg)
i'd like to remove the A.I.R. tube right at the manifold. So, i'm wondering if the manifold is made of the same material as other exhaust manifolds. i probably won't be doing the welding because i don't have any equipment. But what material should be used and what welding processes would be best?
If there is an easier way, i don't have to cut the tube right at the manifold.
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well if you look at the tubes you will see they already been welded so they arnt cast. even saying that cast can be welded it just tends to have a heat effected area that will break easy. so if you cut that tube off you can just fill it in with a mig welder, its not hard just dont get your weld too hot. like spot it then let that cool till the reds gone and do the same thing all over
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So you're saying not to use a patch of metal, just use the wire as the filler?
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yeah its a small hole, i wouldnt bother. and the amount of patch you use you will prob burn it up trying to weld it in place