View Poll Results: Are the 1 7/8 Headers Too Big?
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1 7/8 Headers Too Big ?
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From: Gettysburg, PA
1 7/8 Headers Too Big ? When I bought the car it had a T-rex in it which is why I am guessing the previous owner went with the 1 7/8 headers, but I have been wondering if these may be too big for my setup?
Engine Mods Include:
-FMS F14 (232/234 .598/.598 112LSA +4)
-243 Casting LS6 heads with sodium filled valves (clean up milled .002)
-Patriot Gold dual spring kit
-Thunder Racing heat treated 7.400 chromemoly pushrods
-Rollmaster heat treated adjustable double roller timing set
-MTI Clear Induction lid w/ WIX paper filter
-Thunder Racing billet MAF ends, black
-Jantzer ported and black powdercoated throttle body
-FAST LSX 78MM Intake
-March underdrive pulley
-ARP Pro Series rod bolts
-Ported LS6 oil pump
The headers on the car now are:
Edelbrock Victor Series drag headers: 1 3/4" to 1 7/8" stepped long tubes
Engine Mods Include:
-FMS F14 (232/234 .598/.598 112LSA +4)
-243 Casting LS6 heads with sodium filled valves (clean up milled .002)
-Patriot Gold dual spring kit
-Thunder Racing heat treated 7.400 chromemoly pushrods
-Rollmaster heat treated adjustable double roller timing set
-MTI Clear Induction lid w/ WIX paper filter
-Thunder Racing billet MAF ends, black
-Jantzer ported and black powdercoated throttle body
-FAST LSX 78MM Intake
-March underdrive pulley
-ARP Pro Series rod bolts
-Ported LS6 oil pump
The headers on the car now are:
Edelbrock Victor Series drag headers: 1 3/4" to 1 7/8" stepped long tubes
Thread Starter
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From: Gettysburg, PA
Originally Posted by TheBlurLS1
Leave 'em alone, you're golden. You will also be in good shape when you put that 427 under the hood. 
Damn college bills, only 3 years left.
Originally Posted by Hard Core Z28
You hurting low end with 1 7/8. You should go with 1 3/4. It will be a better size across the power band.
FWIW - I switched from 1-3/4 to 1-7/8 and noticed no SOTP losses at any RPM.
These motors are super efficient going with a bigger pipe won't hurt at all. I went with a stepped over my old 1.3/4 I can feel a huge difference. No dyno numbers yet but I also put in 4.30's so that may negate my gains
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Originally Posted by TheBlurLS1
He already has the 1-7/8's, it's not worth it to swap them out.
FWIW - I switched from 1-3/4 to 1-7/8 and noticed no SOTP losses at any RPM.
FWIW - I switched from 1-3/4 to 1-7/8 and noticed no SOTP losses at any RPM.
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I've also been kicking around the idea of switching from my 1 3/4" to 1 7/8. You want to trade??? LOL, I would say leave them there, not enough power lost or gained to offset the serious pain in the @ss they are to remove/install.
Chris
Chris
Thread Starter
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From: Gettysburg, PA
If I did it would only be for kooks/QTP...I kinda expected to hear what you guys have said. I've been thinking about QTP's lately, maybe I was just looking for a reason to buy them 
Originally Posted by TheBlurLS1
He already has the 1-7/8's, it's not worth it to swap them out.
FWIW - I switched from 1-3/4 to 1-7/8 and noticed no SOTP losses at any RPM.
FWIW - I switched from 1-3/4 to 1-7/8 and noticed no SOTP losses at any RPM.
Last edited by ShevrolayZ28; Apr 1, 2007 at 08:43 PM.
I'm a big fan of the stapped headers. From your original post it's hard to tell...Are you now running the stepped headers witha final 1 7/8 primary, or a true 1 7/8 all the way out?
I think the full 1 7/8 might be a tad large for your current setup, but not enough to swap IMO. Now is you are on stepped headers, you have the best header setup(again, IMO) that you can buy
I think the full 1 7/8 might be a tad large for your current setup, but not enough to swap IMO. Now is you are on stepped headers, you have the best header setup(again, IMO) that you can buy
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Originally Posted by JL ws-6
when my car comes off the road... one of the first things I'm doing is putting a set of 1 7/8 stepped to 2 inch headers on it, along with a set of dumps off the ends of them
.. enough vibration to bounce extra change around in my cup holder, having to yell to the person in the passenger seat in order to carry on a conversation.. say hello to rasp and goodbye to your hearing!! 