LT1-LT4 Modifications 1993-97 Gen II Small Block V8

94-97 Longtubes on 93 Z

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Old 11-04-2012, 03:16 PM
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Default 94-97 Longtubes on 93 Z

Whats the easiest way to delete the o2 sensor holes and the Air and egr spots. I got a killer deal on these and want to figure out a way to make them work.
Old 11-04-2012, 03:40 PM
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You can get the bung welded shut, not really sure if they make a screw in cap or not.
Old 11-04-2012, 04:15 PM
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As far as the AIR bungs go, you can cap them with a pair of M18 drain plugs located at any parts store.
Old 11-04-2012, 06:13 PM
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Or, when exhaust shops buy O2 bungs in bulk, they come with a allen-headed cap that screws in. My shop had a box full of 'em and told me to grab as many as I wanted...
Old 11-05-2012, 08:59 AM
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You can get a drain plug for the O2's too. I needed one for my ory
Old 11-07-2012, 10:56 PM
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Do i need any of the factory connections to run these headers. I know there is an AIR hookup on the driver header, but what do i need to do to delete it?
Old 11-08-2012, 07:28 AM
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I take it emissions are of no concern? If not then all you need to do is plug the header bung and you can take the AIR pump off and pull the fuse. I don't believe it will throw a code on a '93.
Old 11-08-2012, 09:36 PM
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no i do not need any emissions at all. Just wanting to know if i need any of the connections on the headers before i have them all welded shut
Old 11-08-2012, 10:27 PM
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Nope, just the front O2 holes. All the emission and extra O2 bungs can be filled (I have 94-95 headers on my 93)



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