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04-04-2012, 08:24 PM
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#1 |
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Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Header?
I asked this in the racing section but seeing as it's an LS 2 I'll ask here also.
I've got an LS2 going in my project. It's rated at 400/400 from the factory. I'm looking at 2 different sets of headers. http://www.sandersonheaders.com/Sand...s-Engines.html These have 1-5/8 tubes with a 3" collector. http://www.sandersonheaders.com/Sand...eader-Set.html These I can get with a 1-3/4 tube with a 3" collector. Is there going to any difference on a street driven engine with the smaller primary tubes? Thanks for any input. Kim |
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04-04-2012, 09:46 PM
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#2 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Header?
You got me... on shorties with 1/8" difference in primaries, but the same collector.
I guess the question might be, would you loose anything down low by running the 1 3/4"?
__________________
Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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04-04-2012, 10:45 PM
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#3 |
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Senior Member
  
Join Date: Oct 2011
Location: Wolfforth, Texas
Posts: 976
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Re: Header?
I have a set od LS10's I will make you a deal on
Posted via Mobile Device
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Craig 1966 Chevrolet C10 - Supercharged LS3 1968 Chevrolet Camaro 1957 Chevrolet 2dr Hardtop "It makes sence if you don't think about it"  Mesquite 1966 C10 - LS3 W/ Air Ride http://67-72chevytrucks.com/vboard/s...=1#post4989763 |
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04-04-2012, 11:28 PM
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#4 |
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Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Re: Header?
Not sure if the links are working for you guys but the 1st set are LS10 and the second set are LS134.
Everything I've seen on the LS engines shows that they prefer the larger primaries. The stock do fine with 1-3/4 and if you do any performance mods the 1-7/8 seems to be the way to go. I know that on the street for low end torque smaller primaries was always the way to go. It seems the LS may be a little different. Kim |
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04-04-2012, 11:29 PM
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#5 | |
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Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Re: Header?
Quote:
Kim |
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04-05-2012, 01:22 PM
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#6 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Header?
I'm running 1 7/8" x 3" long tubes on my 6.0L.
As far as WOT.....sure, the larger primaries should do better.
__________________
Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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