lbody headers...

[3X00-Modified]

These are probably SS Replica's from my model on how to fit them to a L-body with the exception of the proper tweak to fit a 5-speed and hopefully the 3t40 as well.

The only fitment issues you may have is you might need to upgrade to a newer fan if you have the old big bulky one like Brennan did when he tried to put his in.

I also put a sparkplug sock on my oil pressure sending unit, and one of my heater core lines just to protect them from the excess heat. They have NEVER given me an issue yet to this day.

[woody90gtz]

Wow, that's a hellish good deal. I already have a set or I'd be in. Anyone who has ever thought about headers should jump on this.

[Money pit Beretta]

I do have a 95...... is there a change to the fan in 96?
Good tip there on blocking the heat. I had forgot about everything else but the TB. My CAI tube would be ok,but the connector on the TB would pay the price. I'd have to come up with some sort of shield.
I'm working up to that jump Woody.

Also this is not showing up on the active topics!

[Money pit Beretta]

I'm starting to have some fear on where the O2 is. Where it's at in the photo's would mask the back bank from it. 3X00 did you have any trouble with this when you did the OBD2 swap? I mean the computer will be looking for them and if it doesn't see them what then? I would think it should be in the collector. I know where to get a longer pig tail just for this.

[3X00-Modified]

Having the O2 on one bank is just fine for the computer.. It doesn't know any better that its reading on only 3 cylinders.

granted for a high power application you will most likely do what I did and install a wideband at the last collector. I did that and I use that gauge for tuning. My narrowband is simply used for part throttle cruise and its location has no affect on that.

You also do not need a shield below your TB. Mine has nothing and nothing has melted.

95 to 96 the only change is the motor itself is slimmer, but the 95 fan shroud will clear the headers, it was the shrouding on the older 92's and such that wouldn't clear.

[Money pit Beretta]

I thought OBD1.5 used the 24X sensor along with the O2 for trims. My O2 will have to read at all times. I must be sure that there will be no bad effects before I get the headers. This is my DD car and my lunch money that I'll be using. I hope your right on the fan, mine is working just fine and I'd hate to have to replace it. I'm getting about 20 hours at work(none so far this week), so this is going to hurt bad. I am glad to have the chance to get some headers though.

[IsaacHayes]

These are mocked after JohnnyMossville's headers. He had them on a 3T40 so they will work for that and of course the 4T60-e since he followed Jon's instructions and well nothing really is needed to fit a 60-e, just the firewall angle. John is modifying them so they are not so close to the thermostat housing, and that should help with 5spd clearance. Anyone know what needs to be done for 5spd clearance?

So a 94 fan will clear the S&S? Thought you needed a 96 for sure?

MPB: Why would the 24x crank trigger have any affect on fuel??? That's just for low RPM (under 2k) spark resolution for smoother idle and crap. Reading half the cylinders should be fine, just if there is a problem say with one not firing/etc then the affects on fueling is even more dramatic than if it had 1 bad out of 6. Or if the back bank has one missfiring then it won't affect the fueling of the rest of the motor at all. Either way if one cyl is miss behaving then it make fueling for the whole motor off since the PCM things the engine overall is rich/lean and bounces back and forth trying to correct it, fighting itself even stock. If it had 6 O2 sensor then it would be ideal, but that is not practical... It might make figuring out what side of the motor has a missfire... If it's slight it's the rear bank, if it's affecting fueling and bad, it's the front... LOL

[3X00-Modified]

I thought OBD1.5 used the 24X sensor along with the O2 for trims. My O2 will have to read at all times. I must be sure that there will be no bad effects before I get the headers. This is my DD car and my lunch money that I'll be using. I hope your right on the fan, mine is working just fine and I'd hate to have to replace it. I'm getting about 20 hours at work(none so far this week), so this is going to hurt bad. I am glad to have the chance to get some headers though.

I don't understand what your worried about here? your thinking way too much into this. What does an O2 do? It reads the Oxygen level of the exhaust gases, 3 cylinders will have the same ratio of concentration vs flowrate as the 6 combined would and will not affect the way your car runs. Average of 3 cylinders is/should be the same as the average of all 6 unless you have a shot fuel injector, which still wouldn't show up well. There are HUNDREDS of people with N-bodys and SS headers that have never had issues either. Also my fuel trims are derived the SAME way yours are... and I've driven to Niagara, Charlotte, Epping, and Lebanon multiple times, TWICE to NC actually, and I have yet to have an issue or even poor mileage.

I daily drove 15k miles with a set of SS headers on my car and NEVER had an issue... Is that what you want to hear?

Isaac you confusing Barry issues with others. The fan from a 95 will fit, but you will NOT be able to put the fan in AFTER you install the headers. That wont happen. It has to be in place before they go on, so don't think about removing the fan for installation space because you wont get it back in.

Misfires IIRC are reported for the cylinder in question, it will tell you which one is misfiring due to how the 24x crank sensor detects it. Misfire is not done by fuel reporting.

[SappySE107]

They are based off a set that fit and the jig was made with that sets parameters. This is a beta though so I cannot promise anything working 100% the first time. I am certain every precaution to make this a once and done beta is being taken.

I am not aware of these being equal length so I would not call them tuned for any specific powerband.

These will probably be $450 uncoated in the future. We will see how these last 2 sets sell. I also need to know if the L body an J body can use the same headers. I had an email asking but I own W bodies, so I have no idea. Oh and yes, this is Ben:P I hope no one else uses WOTTECH screen name on a GM FWD based forum.

[Asylum]

That is a hell of a deal folks!

[Money pit Beretta]

Yeah that would cover it. I thought that the computer read the all the cylinders and that if there were three missing there would be a problem. My fear was that I have no way to tune out a problem if I ran into one.
Hi Ben, it's been a long time. We talked about cams and 3400 intakes, but I bet you have talked to many people about that. I contacted you by your site. I'm the one the JY sent the wrong year of intakes to and the right TB. I think I'm beating a dead horse here, so I'll stop.

Take it easy on me 3X00, I'm more of a old school hardware guy than a software guy. I bought a 83 Z28 in 92 and it had FI. I took it out and put a carb on it(because it was a CFI). I bought a chip for the 90GT, so I didn't learn anything.

[Money pit Beretta]

Looks like I will get one of the last two.
Can I use stock gaskets? Or is it best use the TCE ones?
What are you guys using to hold them on? I don't see a need for ARP. I might be able to get Stage8 locking bolts if they have the right size(what size are they?). Stage8's were the bolts to use in my old SBC days. If they are 8mm 1.25x25 then I can get them(part# 6910).

[3X00-Modified]

M8x1.25 yes I think that is it, I'm not sure on the length needed though. I'm using M8x1.25 alan head cap screws... Stainless of course. I had to use ONE stud on the rear cylinder 5 lower bolt though... no way in hell was I getting my alan wrench in there.

Best to use the TCE gaskets, but stock ones can be used, you will just have to cut out a path for the collector to get from port to port, on stock gaskets the heat shield part is there... nothing a set of tin snips can fix. I'm still running a stock set of gaskets to this day.

Sorry to come off harsh but I was confused on what you were trying to ask. typically yes the O2 reads all 6 cylinders, but remember the exhaust gases should be an average of every cylinder since if the car is running PERFECT each cylinder is outputting the same gases. So 3 cylinders vs 6 the average should be the same. Also as noted the narrow band o2 is no where near sensitive enough to detect any sort of engine issues except major failures such as 2-3 dead injectors. Even then it would only try to adjust the fuel trim to compensate for the lean condition, it would not know whats going on.

And yes as noted SS is not equal length... Only person I know with a set of those is Dave from 60degreev6.com he has one set wrap down and under the oil pan IIRC... or at least he did at one point.

[SappySE107]

I cannot PM anyone and my posts are moderated so this is my last post here (email me or use 60V6 or wot-tech I guess from now on). If it shows tax and no shipping, you are not logged into wot-tech for it to know where you live.

[3X00-Modified]

Yes your posts are moderated because your a NOOB! LOL

Wait till you've posted 5 times that will go away.