Header Installation

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Sep 5, 2006 | 09:50 PM

Drez

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Racer

Joined: Jun 2006

Posts: 286

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From: Plainfield Illinois

Header Installation

I am installing Hedman Hedders on my 85 L98 and have a couple of questions. What am I supposed to do with the air tubes that connected to the stock exhaust manifold. There are no connections on the new headers. Also, I dont see any opening for the O2 sensor. I am sure that these are easy questions, I've just never done this before.

Thanks.

Sep 5, 2006 | 10:01 PM

vader86

Team Owner

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From: Athens AL

C7 of the Year - Unmodified Finalist 2021

C4 of Year Finalist (performance mods) 2019

You'll have to yank the AIR piping off, and have an O2 bung welded in for the sensor.

Sep 5, 2006 | 10:11 PM

Midnight 85

Le Mans Master

Joined: May 2004

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From: Hellinois

Finalist 2020 C4 of the Year - Modified

You should have specified that you wanted headers with the A.I.R. fittings on them. My Hedman Elites came with thise fittings. I didn't weld a bung in my collector because the headers were coated so I put it on the collector cone, works great there. I used a heated O2 sensor.

Sep 6, 2006 | 08:52 AM

Drez

Thread Starter

Racer

Joined: Jun 2006

Posts: 286

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From: Plainfield Illinois

So what is the effect of deleting the AIR system? Will there need to be any chip changes or other modifications I will need to do as a result?

Sep 6, 2006 | 09:13 AM

c4cruiser

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From: Lacey WA RVN 68-69

NCM Sinkhole Donor

There should be no codes thrown if you don't connect the AIR pipes to the headers. There is a pulley and bracket kit that installs in place of the AIR pump so you can use the same serpentine belt.

Sep 6, 2006 | 09:19 AM

mikey whipreck

Melting Slicks

Joined: Jun 2004

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Quote:

Originally Posted by Drez

So what is the effect of deleting the AIR system? Will there need to be any chip changes or other modifications I will need to do as a result?

Dig through the archives, all will be revealed.

Short answer: no.

Sep 6, 2006 | 09:30 AM

zoro

Pro

Joined: Sep 2005

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From: Calgary '85 Z51 coupe

No codes on my '85 - you don't need the AIR but you will need the O2.

Sep 6, 2006 | 09:52 AM

Drez

Thread Starter

Racer

Joined: Jun 2006

Posts: 286

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From: Plainfield Illinois

So is this what I am looking for for the pump delete? (From Mid America ----$150.00????)

This 1985-91 Air Pump Replacement Pulley Kit has highly polished aluminum brackets and uses grade 8 bolts. Also cleans engine area and, best of all, you can use your original serpentine belt. * For off road & race use, on dual exhaust cars only.