Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Old Nov 5, 2003 | 08:46 PM
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madbrace's Avatar
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From: los angeles
Default manifold ???

I have decided to modify my manifolds by cutting off the stock flanges and welding some aftermarket bolt on reducers. The reason im doing this is because i dont want to purchase an aftermarket y pipe$$.I went to one muffler shop and he told me he could not weld them because the reducers and manifolds are of different material. Somenone else told me it does not matter that I can weld the after market collector and flanges to the manifold. The manifolds are from a 98 camaro and the collectors are jegs bolt on reducers. Is it possible to weld the both together ???
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Old Nov 5, 2003 | 09:10 PM
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You could probably have them brazed, maybe even heli-arced. I do not know how long that would hold up though.
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Old Nov 6, 2003 | 11:54 AM
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If the '98 manifolds are the same as '99's then you are going to end up with a tube within a tube ! If you can just get an adaptor/reducer from the existing flange.
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Old Nov 6, 2003 | 12:52 PM
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Welding them would be no problem. Muffler mack must be a hack welder if that's what he told you. More than likely, he just didn't want to do it.

However, I just cut off the mating flanges from the y pipe and welded my new pipe right up to the flanges.
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Old Nov 6, 2003 | 11:46 PM
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Find yourself a person in your area that does Stock cars. i bet they would be more than happy to do some welding for you.
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