V6 Tech 1967-2002 V6 Engine Related

if i swap engines, do i have to change my exhaust?

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Old 02-07-2005, 10:27 AM
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if i swap engines, do i have to change my exhaust?

Later down the road I want to swap out my 3.4 for an lt1. I currently have a flowmaster american thunder cat - will i have to completely change my exhaust and get a different type of flowmaster or can mine work with an lt1?
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Old 02-08-2005, 10:38 AM
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Re: if i swap engines, do i have to change my exhaust?

You will need the LT1 manifolds (or headers) and a y-pipe, but as long as your cat and cat back are 3", you should be just fine.

- Justin
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Old 02-10-2005, 03:49 PM
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Re: if i swap engines, do i have to change my exhaust?

It may not bolt up directly, depending on whether you get stock LT1 manifolds, or I'd hope, headers, and what y-pipe you get. If it doesn't bolt up though, any exhaust shop will be able to weld/cut whatever for prolly $30 or so.
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Old 02-11-2005, 06:53 PM
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Re: if i swap engines, do i have to change my exhaust?

sweet
thanks a bunch!
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