LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Header modify???

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Old Feb 24, 2018 | 10:15 AM
  #1  
wideglide2011's Avatar
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Header modify???




Are peaple welding these 2 piece header tubes????



If i cut this flange off will i be able to then use a slip fit off road y-pipe or will i be way off on dimensions??? Thanks for the help.
Attached Thumbnails Header modify???-20180224_090426.jpg   Header modify???-20180224_090436.jpg  
Old Feb 26, 2018 | 10:47 PM
  #2  
95LT4Z28's Avatar
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Re: Header modify???

they look like hooker headers. if im not mistake the #1 pipe seperates from the rest of the header. the #1 tube is installed around the steering shaft after the rest of the header is installed. people put high temp silicone ( like permatex copper ) in the joint to seal it. i would buy a set of flanges and bolt up your y pipe. you ll destroy the coating if you weld to it and if you cut the flanges off you may have trouble getting a pipe to slip over.
Old Mar 1, 2018 | 09:47 AM
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wideglide2011's Avatar
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Re: Header modify???

thanks for both replys. yeah there hooker headers but i don't remember the part number. i'll run them as is for now and see how it pans out.
Old Mar 1, 2018 | 03:38 PM
  #4  
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Re: Header modify???

You'll need a set of collector reducers. Do those have 02 bungs ? Flowtech 10004: Exhaust Reducer 3-Bolt 3" Collecter Flange Inlet | JEGS
Old Mar 1, 2018 | 07:25 PM
  #5  
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Re: Header modify???

Originally Posted by 95LT4Z28
they look like hooker headers. if im not mistake the #1 pipe seperates from the rest of the header. the #1 tube is installed around the steering shaft after the rest of the header is installed. people put high temp silicone ( like permatex copper ) in the joint to seal it. i would buy a set of flanges and bolt up your y pipe. you ll destroy the coating if you weld to it and if you cut the flanges off you may have trouble getting a pipe to slip over.
Exactly!
Old Mar 2, 2018 | 09:38 AM
  #6  
wideglide2011's Avatar
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Re: Header modify???

yeah they have 02 bungs. the reducers are where i'm headed. just trying to get a start on exhaust lay out. thanks for info guys.
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