C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

will headers like this work?

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Old Sep 12, 2007 | 10:22 PM
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Default will headers like this work?

has anyone ever tried block huger headers on a l98 c4?
http://cgi.ebay.com/ebaymotors/Chevy...QQcmdZViewItem
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Old Sep 12, 2007 | 10:29 PM
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Can't say if those fit or not, but... if you look under the covers, that's pretty much what you already got. Not all pretty and shiney though.

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Old Sep 12, 2007 | 10:42 PM
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there's really no point in buying shorty headers (like these). Go with long-tubes if you want to see some serious gains. You can get a cheap pair for like $300? maybe $400.
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Old Sep 12, 2007 | 11:06 PM
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Originally Posted by jwalker87
there's really no point in buying shorty headers (like these). Go with long-tubes if you want to see some serious gains. You can get a cheap pair for like $300? maybe $400.
No disrespect, but this is the kind of response that cracks me up! When was the last time someone installed a long tube header system on a C4 for $300 or maybe $400. Yeah, you can buy a set of cheap long tubes for that, but not the converters or the welded O2 bungs or the clamps.... Long Tubes and the associated exhaust system mods will cost much more than a set of quick and dirty short tube headers. We all know that they won't produce as much HP as the 15-25hp that LT header will, but that's ok for some guys, because they might get a little better flow and a lot more bling for thier dollar$$$ than the rusted boat anchors attached to their existing block.

Sorry for my rant - but let's be real.

As for the OPs question. They will probably bolt up, but there is no fittings for the EGR pipes of the AIR system. If you want to cut that stuff out, and not use emissions - then maybe you can go LT, but it will cost you a lot more than $150 or what ever those block huggers on FleaBay cost. They are pretty and shiney, though. Lot a bling for the money if they don't leak.
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Old Sep 13, 2007 | 01:18 AM
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Grizz: $400 works for my 87 L98, Heddman Elites, heated o2, used the existing Y, cut cats, band clamps, and bingo, LT install for 400...
Now thats real...
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Old Sep 13, 2007 | 02:11 AM
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Originally Posted by vinnies87
Grizz: $400 works for my 87 L98, Heddman Elites, heated o2, used the existing Y, cut cats, band clamps, and bingo, LT install for 400...
Now thats real...
I state that you could do it if you cut the cats and emissions
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Old Sep 13, 2007 | 07:19 AM
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Originally Posted by lushdrunk
has anyone ever tried block huger headers on a l98 c4?
http://cgi.ebay.com/ebaymotors/Chevy...QQcmdZViewItem
You see where the ad says "will not work with angled plugs"...well, you have angled plugs.
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Old Sep 13, 2007 | 07:57 AM
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Originally Posted by BADDUCK
You see where the ad says "will not work with angled plugs"...well, you have angled plugs.
Kinda. He has L98 angle plugs. Might wanna double tripple check.
Infact, I know they will work because the L98 angles the plugs INWARD between the tubes. Some aftermarket angle plugs angle them the other way.

It still might NOT work, but those block huggers pretty much follow the same pattern as the stock header/manifolds.

He'd have to weld an 02 bung too.

I'd either go with recoated OEM's, or the hooker short tubes.

I have hooker 2149's btw and i'm not very impressed. I'm trying to figure out how the bottoms of my 'coated' hookers are already rusty to crap in a car that is driven once a week, and mostly garaged!

-- Joe

Last edited by anesthes; Sep 13, 2007 at 07:59 AM.
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Old Sep 13, 2007 | 11:28 AM
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i don't think i've ever seen a set of headers that didn't leak after awhile, or rust out, those are some serious temps & vibrations going through there.
you just have to be "ON TOP" of them just like any HP parts, like.....opening the hood and checking everytime you gas up like checking oil and the like. even if you never need oil, it is a good practice to get into to check brake fluid and stuff, just add headers to your list! if your the guy that just puts in gas and never looks under the hood unless there is a problem, then headers are not for you! no matter how much you pay.....if you check like every week, you could probrably keep up on a cheap $99 set of headers LOL. (my 2 mins.)
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Old Sep 13, 2007 | 11:33 AM
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Originally Posted by billybonesmusic
i don't think i've ever seen a set of headers that didn't leak after awhile, or rust out, those are some serious temps & vibrations going through there.
you just have to be "ON TOP" of them just like any HP parts, like.....opening the hood and checking everytime you gas up like checking oil and the like. even if you never need oil, it is a good practice to get into to check brake fluid and stuff, just add headers to your list! if your the guy that just puts in gas and never looks under the hood unless there is a problem, then headers are not for you! no matter how much you pay.....if you check like every week, you could probrably keep up on a cheap $99 set of headers LOL. (my 2 mins.)
Thats what I liked about the SLP fbody headers. like 1" flanges, used regular bolts + steel gaskets. like manifolds, never leaked. Oh well

-- Joe
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Old Sep 13, 2007 | 12:24 PM
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I put coated Hedman headers on my '86 5 or 6 years ago. Put 'um on, retightened them a few days later, never touched them again. Now having posted this, they'll probably start leaking tomorrow.

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Old Sep 13, 2007 | 12:43 PM
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Those will prob work but man spend some time saving to get some long tubes coated the way u want em. The pwoer gain will be worth the extra dollars. And also there is no mention of warranty on there be very careful.
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Old Sep 13, 2007 | 01:17 PM
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Originally Posted by anesthes
Kinda. He has L98 angle plugs. Might wanna double tripple check.
Infact, I know they will work because the L98 angles the plugs INWARD between the tubes. Some aftermarket angle plugs angle them the other way.

It still might NOT work, but those block huggers pretty much follow the same pattern as the stock header/manifolds.

He'd have to weld an 02 bung too.

I'd either go with recoated OEM's, or the hooker short tubes.

I have hooker 2149's btw and i'm not very impressed. I'm trying to figure out how the bottoms of my 'coated' hookers are already rusty to crap in a car that is driven once a week, and mostly garaged!

-- Joe
Just pointing out a potential problem. I like the Hedman Elite headers, for a low cost alternative.
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Old Sep 13, 2007 | 01:51 PM
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Originally Posted by BADDUCK
You see where the ad says "will not work with angled plugs"...well, you have angled plugs.
Unless he has a 1986E or earlier C4. The cast iron heads have straight, not angled, spark plugs.

Those shorties, whether they fit or not will provide little if any increase in performance.



Originally Posted by anesthes
Thats what I liked about the SLP fbody headers. like 1" flanges, used regular bolts + steel gaskets. like manifolds, never leaked.
Now THOSE suckers must be heavy! The headers are still straight, but the heads warpped.

RACE ON!!
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Old Sep 13, 2007 | 03:08 PM
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Originally Posted by CFI-EFI
Unless he has a 1986E or earlier C4. The cast iron heads have straight, not angled, spark plugs.

Those shorties, whether they fit or not will provide little if any increase in performance.



Now THOSE suckers must be heavy! The headers are still straight, but the heads warpped.

RACE ON!!
I might still have a pic somewhere. But the flanges are huge. You have to use almost a 3" bolt. And to make matters worse, they have 3 flanges, so when they warp (the tubes) you have to pry them over to line the bolts up. But once they were in, never a tick!

-- Joe
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