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LS1 Swap - Side pipes possible?

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Old 02-19-2006, 04:48 PM   #1
JoeZ
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Default LS1 Swap - Side pipes possible?

Does anyone know of having side pipes on a C3 LS1 swap? My buddy is swapping one into his '75 right now and is curious about it.

Are there any custom headers that would fit, or would the entire assembly need to be custom for sidepipes? Any help would be appreciated...

Joe Z
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Old 02-19-2006, 04:48 PM   #2
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Custom... do a search on Nitrovette.
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Old 02-19-2006, 04:55 PM   #3
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yep i modified my hookers to fit,i bought ls1 header flanges from gm and cut my old flanges off and had to move 2 of the pipes on each side to fit the ls1 flanges.Took some time but works fine.The one pics shows how far they off from the start.



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Old 02-19-2006, 05:04 PM   #4
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Looks great pat.
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Old 02-19-2006, 05:24 PM   #5
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Great looking work. Something to keep in mind...if you get a stickler for an emissions tester, your car has to pass emissions for either the year of the body or the year of the engine, whichever is newer. That's at least the way it is in a lot of areas...
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Old 02-19-2006, 05:24 PM   #6
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check stainlessworks they have a set for the c3 ls1
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Old 02-19-2006, 06:09 PM   #7
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Pat, how do they sound?
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Old 02-19-2006, 06:34 PM   #8
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Ill be starting it tommorrow hopefully.
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Old 02-19-2006, 06:37 PM   #9
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They are for the Newman frame and pretty darn pricey, but I'm sure nice.
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Originally Posted by vetteaddic
check stainlessworks they have a set for the c3 ls1
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Old 02-19-2006, 06:47 PM   #10
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Quote:
Originally Posted by patsnitrovette
Ill be starting it tommorrow hopefully.
Good Luck with it Tell us how it goes.
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Old 02-19-2006, 06:49 PM   #11
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Ill be doing a video for sure of the start up,IF it starts.
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Old 02-19-2006, 06:50 PM   #12
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Nice work pat! I like the idea of LSx w/ sidepipes!
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Old 02-19-2006, 09:35 PM   #13
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I'm in FL so emissions isn't a problem at all.

So Pat, you basically just took standard sbc headers and modified them to fit the LS1 if I understand you correctly?
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Old 02-19-2006, 10:46 PM   #14
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yes i took hooker side pipes and cut off the stock flanges,2 of the pipes on each header have to be cut and moved to the spacing of the ls1 flanges.I also forgot on the drivers side sidepipe you have to cut the 4 tubes going under the frame as it exits out and lengthen them a bout 1 inch more so the sidetubes will fit outside the frame now next to the rocker panels.Passenger side is ok.
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Old 02-19-2006, 11:00 PM   #15
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Custom LS1 headers to standard C3 exhaust location allows the use of Gm C3 sidepipes. Expensive, but still one of the most beautiful setups for C3 sidepipes.
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Old 02-22-2006, 09:07 AM   #16
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http://www.mcjackscorvettes.com/McJacks_C3_Headers.htm Headers that bolt up to factory sidepipes...
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