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Generation IV Internal Engine
Which Header Size

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Which Header Size

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Old

Apr 8, 2012 | 09:47 PM

#1

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TECH Junkie

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Which Header Size

Ok, here is the combo. L92 6.2L motor with LS3 intake manifold and Texas Speed VVT-3 camshaft, no DOD. 4L80E trans with a Yank SS3600 stall and 3.42 rear gears. Which size long tube header would be the best for this application? 1.75", 1.75"/1.875" or 1.875"? Just wondering what the latest thoughts are on this. Car weighs 3240 pounds.

Old

Apr 9, 2012 | 06:06 AM

#2

12 Second Club

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1 7/8's

Old

Apr 9, 2012 | 06:24 AM

#3

TECH Regular

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Quote:

Originally Posted by litle88

1 7/8's

Agreed.

I'm running 1 7/8" with 3" collectors on a cam only LS3 in a 3,860lb Monaro.

Old

Apr 9, 2012 | 12:06 PM

#4

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TECH Junkie

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Thanks guys. 1 7/8" it is. I can't believe I posted this in the wrong section. I went to look for my post in the external section and could not find my post. Hahahaha.

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Apr 9, 2012 | 05:02 PM

#5

LongIsland63SS409

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From: Long Island, NY

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1 7/8.
I am going to be running an almost identical setup except I am going to use a 3.73 gear.

Mike

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