Header Install/Prep Work (L98)
Thread Starter
Instructor
Joined: Jul 2008
Posts: 101
Likes: 0
From: Bartett/Long Grove IL
I promised you guys progress pictures.
A tip to anyone who is going to do this project, take the spark plugs off before you attempt to take the exhaust manifolds off.
drivers side, headers off, air pump off, alternator laying to the side, belt off, plugs/wires off
passenger side bent dipstick, air stuff removed
passenger side, A/C portion off, headers off, smog off, belt off, plugs/wires off
dipstick bent halfway down, while removing stock exhaust manifold
stock exhaust manifolds and plugs
of course, dad had to highlight my Polish Hood Lift (stock one doesn't always stay up, yes we've both been hit in the head before), while also showing his badass Z06
A tip to anyone who is going to do this project, take the spark plugs off before you attempt to take the exhaust manifolds off.
drivers side, headers off, air pump off, alternator laying to the side, belt off, plugs/wires off
passenger side bent dipstick, air stuff removed
passenger side, A/C portion off, headers off, smog off, belt off, plugs/wires off
dipstick bent halfway down, while removing stock exhaust manifold
stock exhaust manifolds and plugs
of course, dad had to highlight my Polish Hood Lift (stock one doesn't always stay up, yes we've both been hit in the head before), while also showing his badass Z06
Racer
Joined: Sep 2006
Posts: 395
Likes: 31
From: Gurnee, IL
St. Jude Donor '12
As you probably know, I am using those Headmans. Stock starter is still in place and I'm using the supplied gaskets and Breslin locking bolts. You will need to make a new dipstick mount. I just cut the stock bracket off and formed one to hang onto the tube and bolt to head.
Here's a pic of big-little brothers during header removal
I think the LS7 is jealous the L98 is getting soooo much attention
Last edited by z06roadkiller; Oct 10, 2009 at 09:38 AM.
Thread Starter
Instructor
Joined: Jul 2008
Posts: 101
Likes: 0
From: Bartett/Long Grove IL
Le Mans Master
Joined: May 2007
Posts: 8,448
Likes: 27
From: Valparaiso
Yes i will be installing installing this combo : AFR 195 heads,Lingenfelter 219 cam,1.6 roller rockers,Accel SuperRam (lower and upper),1 5/8 Hedman Longtubes,im expecting a little difference to my near-stock set up i had.-
what u think
what u think
Thread Starter
Instructor
Joined: Jul 2008
Posts: 101
Likes: 0
From: Bartett/Long Grove IL
I think thats a hell of a project, and your going to see about 10x greater gains then I will off the exhaust, do you have a thread going where I can follow your progress? PM it to me.
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Thread Starter
Instructor
Joined: Jul 2008
Posts: 101
Likes: 0
From: Bartett/Long Grove IL
Just made this nifty discovery, Hedman makes a Reducer with the O2 Bung already welded on there. This reducer will also take it from 3" from the collector to 2.5" which is what I need for the Pypes System.
Do you guys think $22 is a fair price for this? I have no idea what an exhaust shop would charge to weld one in?
Do you guys think $22 is a fair price for this? I have no idea what an exhaust shop would charge to weld one in?
Last edited by Gryz88; Oct 10, 2009 at 10:16 PM.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
I'm jealous of this father-son project. I have three daughters that couldn't care less about cars. My dad is 81. He's scared to death to sit in my C4.
Calderone - You get those AFRs and Super Ram yet? You're goona love the combination. I almost lost it the other day shifting between 1st and 2nd. I'm still getting used to the power gains.
Calderone - You get those AFRs and Super Ram yet? You're goona love the combination. I almost lost it the other day shifting between 1st and 2nd. I'm still getting used to the power gains.
Le Mans Master
Joined: May 2007
Posts: 8,448
Likes: 27
From: Valparaiso
cumber,super ram and 74219 cam are done,im putting together the money to pay the heads now,tell me more about your combo and what you feel drivin it !!!
does it feel that its "more than you can control" if it feels like that ...its right !!!!
The only thing that secretly torment my crazy mind is that it will be a 355 and not a 383
which its the perfect combo...i cant afford a stroker kit after this head/cam/intake upgrade
does it feel that its "more than you can control" if it feels like that ...its right !!!!
The only thing that secretly torment my crazy mind is that it will be a 355 and not a 383
which its the perfect combo...i cant afford a stroker kit after this head/cam/intake upgrade
Instructor
Joined: Feb 2009
Posts: 220
Likes: 0
From: Cape Coral FL
Just found your thread. I am installing the identical setup with the hedman and Pypes this tuesday. I am using a lift next door, that should make it easier. This one is a father daughter project and we are about to wrap it up next week.... complete teardown of the car and recolor inside and out. The new Pypes exhaust fit perfectly in the outlets of the lower valance. My only worry is that it will be a bit too obnoxious (loud) for a DD.My headers have the bung welded into the collector already. I read on Hedmans site that the AC bracket would need modifying. Please let me know how that affects things on your project. I will keep watching.
Thread Starter
Instructor
Joined: Jul 2008
Posts: 101
Likes: 0
From: Bartett/Long Grove IL
I sent a question to Summit Racing about that yesterday, When I hear back from then I'll let you know.
Where did you buy them?
Were not putting them in till mid November, when I get back from school for Thanksgiving. Why don't you let me know how it went
Where did you buy them?
Safety Car
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Before you buy, read member's posts on each company's headers and then make your decision. Alot of headers have fitment issues and require alot of modding of your car and maybe the headers themselves. Sometimes the ease of installing is worth the extra money. Its kinda like buying the extra thick tubes (14 ga) or ceramic coating for durability. Other more pricey headers usually have the fitment issues worked out. As far as Hedman's, I cannot say for the Vette but I have pretty much stuck with them on everything else I have owned with good results.
Anything you can do to prevent rework is worth it in my book. The best gaskets, locking bolts, etc are probly worth it in the long run if you dont want to continually be back under the hood. Its hard enough to do it the first time and worse after the assembly is complete. Choose carefully after research and good luck!
Anything you can do to prevent rework is worth it in my book. The best gaskets, locking bolts, etc are probly worth it in the long run if you dont want to continually be back under the hood. Its hard enough to do it the first time and worse after the assembly is complete. Choose carefully after research and good luck!
Thread Starter
Instructor
Joined: Jul 2008
Posts: 101
Likes: 0
From: Bartett/Long Grove IL
Pro
Joined: Oct 2008
Posts: 705
Likes: 265
From: Jyväskylä, FINLAND
I've been looking to this thread religiously for info ever since deciding on the hedders. Page 2 specifically has a great walkthrough, translated from a swedish website. From this it appears I can actually keep the stock starter. (we'll see about that when I get there)
It's Finnish, from the next country, Finland. There's a difference. It's called "border" 
(No real offence taken, don't worry.) Both the original text (in Finnish!) and the translation is written by me...I also had a couple more questions for the forum veterans.
2) I've seen alot of guys go with the Fel Pro Gaskets, are they worth the extra $20, over the gaskets that come with the headers?
3) I've read that some people use Locking Fasteners, once again are they worth the extra $46 over the bolts from Hedman?
2) I've seen alot of guys go with the Fel Pro Gaskets, are they worth the extra $20, over the gaskets that come with the headers?
3) I've read that some people use Locking Fasteners, once again are they worth the extra $46 over the bolts from Hedman?
But the three bolts connecting those flanges after collectors came loose. I had to tighten them several times and on that day at the track I lost two bolts and four nuts. Just thought that the flanges got a little loose, because the exhaust sound got a little louder than normal on the way home. Well, they were more than a little loose...
