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Lt1 Catalytic converter availability

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Old Dec 5, 2010 | 06:21 PM
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Default Lt1 Catalytic converter availability
I am putting a Lt1 exhaust system on my 91.

http://forums.corvetteforum.com/c4-t...post1575063293

So far I haven't been able to find Cats that will work.
Does anyone have any ideas?
I found these but $700 I might as well get headers.
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Old Dec 5, 2010 | 06:26 PM
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How about you take it to an exhaust shop? Tell them what you are doing and see what they say...
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Old Dec 5, 2010 | 06:31 PM
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Unless you can find someone removing thiers thats about it.
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Old Dec 5, 2010 | 06:32 PM
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Originally Posted by dogfish246
How about you take it to an exhaust shop? Tell them what you are doing and see what they say...
Exhaust shops around here will not alter factory exhaust.
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Old Dec 5, 2010 | 07:08 PM
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Originally Posted by ch@0s
Exhaust shops around here will not alter factory exhaust.
Dang...
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Old Dec 5, 2010 | 07:25 PM
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Old Dec 5, 2010 | 08:35 PM
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I think I found something that will work. I am talking price right now if it works out I will let you know.
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Old Dec 5, 2010 | 09:31 PM
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Originally Posted by ch@0s
Exhaust shops around here will not alter factory exhaust.

You probably won't find any legitimate shop, unless its some "back woods" shop.
It would be against federal emissions laws to alter the type or location of a catalytic converter.

That's why "Cat Back" systems came into play. From the Cats on back, you can alter.
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Old Dec 6, 2010 | 12:30 AM
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corvettecentral and zip-corvette both offer direct fit cat replacements for the lt1. just put some on my 94 and all is good
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Old Dec 6, 2010 | 09:36 AM
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thats very expensive.how often are we required to change catalyst converters?
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Old Dec 6, 2010 | 10:30 AM
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Originally Posted by Desert LT1 Vette
thats very expensive.how often are we required to change catalyst converters?
when you can't pass emissions testing (or never if you don't live somewhere that doesn't test).
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Old Dec 6, 2010 | 01:19 PM
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Originally Posted by mike100
when you can't pass emissions testing (or never if you don't live somewhere that doesn't test).
Or when the darn things come apart and clog the exhaust.
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Old Dec 7, 2010 | 03:07 AM
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Originally Posted by ch@0s
Or when the darn things come apart and clog the exhaust.
haha which is why i had to do mine!
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Old Dec 8, 2010 | 12:11 PM
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Magnaflow p/n 23408 and 23409. I have on my 96 and they work OK.
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Old Dec 8, 2010 | 12:35 PM
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Originally Posted by green.z
Magnaflow p/n 23408 and 23409. I have on my 96 and they work OK.
How much clearance form the oil filter on the drivers side? Can you take a pic for me? I was hoping not to have to change over to the smaller LT1 filter/adapter.
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Old Dec 15, 2010 | 02:46 PM
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Update:
I just ordered a set of Cats with bullet converters from the popular auction site. Looks like they are going to fit without an oil filter adapter.

Last edited by ch@0s; Dec 16, 2010 at 08:37 PM.
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Old Dec 15, 2010 | 03:20 PM
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Originally Posted by ch@0s
Update:
I just ordered a set of Cats with bullet converters from the popular auction site. Looks like they are going to fit without an oils filter adapter.

By just looking at those I feel the heat wave on my legs. Be ready to install a shield or wrap those up.
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Old Dec 15, 2010 | 04:16 PM
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Old Dec 30, 2010 | 08:29 PM
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The Magnaflow cats are VERY close to the oil filter on the LT4. If you have a filter that is larger in diameter it would not fit, unless it is VERY short.
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