anyone make 1 7/8" headers for ltx corvette?
Thread Starter
Race Director
Joined: Sep 2001
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From: NEwhere Ohio
anyone make 1 7/8" headers for ltx corvette?
Ill take a step back and say I am SURE someone makes 1 7/8" headers for the LSx, heck prob 2" headers for the LSx, but what about for LTx?
Im aware of TPIS, Exotic Muscle, and now ARH (stepped) 1 3/4" primary headers for LTx..
But what about 1 7/8" ?
Anybody do it?
Im aware of TPIS, Exotic Muscle, and now ARH (stepped) 1 3/4" primary headers for LTx..
But what about 1 7/8" ?
Anybody do it?
Thread Starter
Race Director
Joined: Sep 2001
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From: NEwhere Ohio
How is that better than one that is 1 7/8" the whole way thru?
I did find this from EM.
http://emracingcorp.com/scripts/prod...p?idproduct=71
Does anyone know of anyone else that makes 1 7/8" headers for corvette lt1?
The ARH stuff is great and I am thrilled they chose to support us.
However, the other companies come out with wimpy 1 5/8" lt1 headers for c4. Do they think c4's are a joke and people buy headers for looks or something?
Last edited by dizwiz24; Nov 25, 2011 at 08:43 AM.
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From: moraga ca
A stepped header gives the best of both worlds. The smaller primaries at the head increases exhaust gas velocity which empties the port and combustion chamber. The increased size past the first few inches decreases restriction throughout the header. Also, 1 7/8 headers might not bolt directly onto the ltx head and might require a plate.
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From: moraga ca
Race Director
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From: moraga ca
Chris, Rick, the stepped 1 7/8 sections start about 8" from the header flange. The overall length compared to the ahookers sitting in my garage seems about the same. The primaries are an inch or two shorter with the ARH headers but the merged collector of the ARH is a couple of inches longer. Hope this helps. Willie
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Le Mans Master
Joined: Dec 2002
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From: Seattle Area WA
Thanks Willie! How are the underhood temps with those headers?
Rick, I think most come in around 27", and I think that is often more dictated by tunnel shape, cat placement and exhaust systems than necessarily performance first.
Rick, I think most come in around 27", and I think that is often more dictated by tunnel shape, cat placement and exhaust systems than necessarily performance first.
Race Director
Joined: Apr 2003
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From: moraga ca
Hey Chris, the possible increase in underhood temperatures with these ARH headers vs a coated set don't really affect me. I get the fluid temperatures up and I'm off for a 10.5 second run. They are not coated so for a street car, they may be higher than a coated set. My 08Z has the naked ARH ss finish (gets kind of ugly after a while), but temperatures haven't been a problem there either. Willie
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From: Orange So Cal
Last edited by Dyno Don L.; Nov 25, 2011 at 10:33 PM.
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From: N. Alabama
If you go with TPIS, be sure to hook up everything while observing alignment to head. Also, see if all runners have obstructive weld bead. I spent a day getting mine cleaned up and aligned. This was several years ago and perhaps they are better with quality control but check them out really close before you start putting any extra work into them.
