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JEGS Performance Products 31804

GM Header Flange GM LS1/LS2/LS3/LS6

JEGS Performance Products 31804

555-31804

made in usa
jegs shipping
Ships
Easy Returns
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Lowest Price Guarantee
Lowest Price Guarantee
$29.99
$25.49
ON SALE - $4.50 OFF
JEGS Performance Products 31804 GM Header Flange GM LS1/LS2/LS3/LS6 $25.49
GM Header Flange
  • GM LS1/LS2/LS3/LS6
  • Round Port
  • 1-3/4"
  • 1/pkg.
  • Made in the USA

  • Specifications:

    Engine Make/Size
    Chevy Small Block LS Series
    Mounting Hardware Included
    No
    Gaskets Included
    No
    Header Bolt Pattern
    Stock
    Header Flange Material
    Steel
    Header Flange Port Shape
    Round
    Header Flange Port Size (in.)
    1.75
    Header Flange Thickness (in.)
    0.375
    Includes Stubs for Primary Tubes
    No
    Quantity
    Sold individually

    JEGS Header Exhaust Flanges are machined from 3/8" thick (Except Where Noted) steel plate for strength and durability. Available in a variety of configurations for the most common applications. Sold 1/pkg. Gaskets, bolts and tubing kit are sold separately. JEGS header flanges are precision CNC laser cut. Requires welding.

    JEGS Open Wheel Long Tube Weld-Up Headers
    JEGS Block Hugger Weld-Up Headers
    JEGS In-Chassis Long Tube Weld-Up Headers

    Does JEGS Performance Products 31804 fit your vehicle?

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    2013 CADILLAC ESCALADE

    • CC: 6162
    • Liter: 6.2
    • SubModel: PLATINUM
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2000-2002 CHEVROLET EXPRESS 2500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-1999 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1999 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2008-2009 PONTIAC G8

    • EngineType: ALL
    • SubModel: GT

    2008-2011 GMC SAVANA 2500

    • EngineType: ALL
    • SubModel: LS

    2013 CHEVROLET SILVERADO 1500

    • CC: 6162
    • Liter: 6.2
    • SubModel: LT
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2013 CHEVROLET SILVERADO 1500

    • CC: 6162
    • Liter: 6.2
    • SubModel: LTZ
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    1998-2000 GMC C3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2002-2006 CADILLAC ESCALADE

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-2001 GMC MOTORHOME

    • EngineType: ALL
    • SubModel: CLASS A; P-32

    2008-2010 CHEVROLET EXPRESS 2500

    • EngineType: ALL
    • SubModel: LT

    2004 CHEVROLET EXPRESS 2500

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2010 CHEVROLET CORVETTE (CANADIAN)

    • EngineType: ALL
    • SubModel: ALL

    2009 CADILLAC ESCALADE ESV

    • EngineType: ALL
    • SubModel: PLATINUM

    2007-2009 GMC YUKON XL 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 GMC SIERRA 3500 CLASSIC

    • Liter: 6.0
    • SubModel: SL
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007-2009 GMC SIERRA 3500

    • Liter: 6.0
    • SubModel: SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2011-2013 CADILLAC ESCALADE EXT

    • EngineType: ALL
    • SubModel: LUXURY

    1998-2002 CHEVROLET EXPRESS 3500

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005 CHEVROLET SILVERADO 1500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-2000 GMC K2500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2009-2012 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: ZR-1

    2007-2009 CHEVROLET SUBURBAN 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-1999 CHEVROLET C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007 CHEVROLET SILVERADO 1500 HD CLASSIC

    • EngineType: ALL
    • SubModel: ALL

    2007 CHEVROLET SILVERADO 1500 CLASSIC

    • EngineType: ALL
    • SubModel: CLASSIC SS

    1998-1999 GMC C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-1999 GMC K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-2002 PONTIAC FIREBIRD TRANS AM

    • EngineType: ALL
    • SubModel: ALL

    2004 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2010 GMC SIERRA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: WT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-1999 GMC K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2006-2013 GMC SIERRA 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: WT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1999-2000 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: ALL

    2002-2005 GMC SIERRA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2005-2007 CHEVROLET CORVETTE

    • CC: 5967
    • Liter: 6.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001-2002 CHEVROLET EXPRESS 1500

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2009-2010 GMC SAVANA 2500

    • EngineType: ALL
    • SubModel: SL

    1999-2002 CHEVROLET CAMARO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2004 CHEVROLET EXPRESS 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007-2013 GMC YUKON XL 2500

    • EngineType: ALL
    • SubModel: ALL

    1999 GMC YUKON

    • EngineType: ALL
    • SubModel: ALL

    2009-2010 CADILLAC ESCALADE EXT

    • CC: 6162
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2009-2010 CADILLAC ESCALADE ESV

    • CC: 6162
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2007 GMC SIERRA 1500

    • EngineType: ALL
    • SubModel: CLASSIC DENALI

    1998-2002 GMC SAVANA 1500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2000-2002 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: Z28 SS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2013 CADILLAC ESCALADE (CANADIAN)

    • EngineType: ALL
    • SubModel: ALL

    2012 CADILLAC ESCALADE ESV

    • EngineType: ALL
    • SubModel: BASE

    2010-2011 CHEVROLET CORVETTE

    • CC: 6162
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2004-2007 CADILLAC CTS

    • EngineType: ALL
    • SubModel: V

    2010-2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: HYBRID PLATINUM

    2010-2013 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: ALL

    1998 GMC C2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA XC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007-2009 CHEVROLET SUBURBAN 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LTZ
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001 GMC SIERRA C3

    • EngineType: ALL
    • SubModel: ALL

    2006 CHEVROLET SILVERADO 1500 HD

    • EngineType: ALL
    • SubModel: ALL

    2013 GMC YUKON

    • CC: 6162
    • Liter: 6.2
    • SubModel: DENALI
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007-2009 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LTZ
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2005 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2010-2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: GRAND SPORT

    2005 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2011-2013 CADILLAC ESCALADE ESV

    • EngineType: ALL
    • SubModel: PREMIUM

    2011 CADILLAC ESCALADE ESV

    • CC: 6162
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2009 PONTIAC G8

    • EngineType: ALL
    • SubModel: GXP

    2010 CHEVROLET SILVERADO 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: WT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001-2002 GMC SAVANA 2500

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2004-2006 PONTIAC GTO

    • EngineType: ALL
    • SubModel: ALL

    2003-2013 GMC SAVANA 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2003 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998 CHEVROLET EXPRESS 2500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2011-2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: LUXURY

    2007-2009 CHEVROLET SILVERADO 3500

    • Liter: 6.0
    • SubModel: LTZ
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001-2003 GMC SIERRA 1500 HD

    • EngineType: ALL
    • SubModel: SLE

    1998-2000 GMC MOTORHOME

    • Liter: 5.7
    • SubModel: CLASS A; P-30
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2012-2013 GMC SAVANA 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2010 GMC SIERRA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2011-2013 CHEVROLET EXPRESS 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001-2005 CHEVROLET SILVERADO 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2010-2011 CHEVROLET CAMARO

    • CC: 6162
    • Liter: 6.2
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: W
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    1998-2000 GMC SAVANA 2500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007 GMC SIERRA 1500 CLASSIC

    • CC: 5967
    • Liter: 6.0
    • SubModel: CLASSIC SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2002 GMC MOTORHOME

    • EngineType: ALL
    • SubModel: ALL

    2006 CHEVROLET SUBURBAN 1500

    • EngineType: ALL
    • SubModel: LTZ

    2010-2012 GMC SIERRA 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: SLE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2008-2010 CHEVROLET EXPRESS 2500

    • EngineType: ALL
    • SubModel: LS

    2009-2012 CHEVROLET SILVERADO 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: LTZ
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    1998-1999 GMC P35/P3500 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FIREHAWK

    1999-2000 CHEVROLET SILVERADO 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2012-2013 GMC SAVANA 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1999 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2003-2006 CADILLAC ESCALADE ESV

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2013 GMC SIERRA 1500

    • CC: 6162
    • Liter: 6.2
    • SubModel: SLE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2010-2012 GMC YUKON XL 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: SLT
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2002-2005 GMC SIERRA 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )
    31804 - JEGS Header Exhaust Flange is rated 3.0 out of 5 by 2.
    Rated 5 out of 5 by from Great price for an amazingly easy to weld too product. 5 stars......
    Date published: 2015-02-15
    Rated 1 out of 5 by from Poor quality/craftsmanship Bought a pair for my LS1 to use with my universal weld up 1 3/4 tube header kit. Shipping was quick, box in perfect condition, but one flange was warped more than 1/4" inch, both flanges didn't accept any 1 3/4 exhaust tube. Measured the inside diameter less than 1.75". Sent the warped one back, received a 2nd warped one that was worse than the previous one. In the end, I sent back both and designed my own, sent to a laser cutter with the proper dimensions and now I'm set.
    Date published: 2015-06-04
    • y_2017, m_11, d_23, h_23
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_10001_10001_1411282, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
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