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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
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Lowest Price Guarantee
Lowest Price Guarantee
JEGS Performance Products 31804 GM Header Flange GM LS1/LS2/LS3/LS6 $29.99
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
    Quantity
    Sold individually
    Gaskets Included
    No
    Header Bolt Pattern
    Stock
    Header Flange Material
    Steel
    Header Flange Thickness (in.)
    0.375
    Includes Stubs for Primary Tubes
    No
    Mounting Hardware Included
    No
    Header Flange Port Shape
    Round
    Header Flange Port Size (in.)
    1.75
    Shipping Weight:
    31.30
    Package Height:
    37.000
    Package Width:
    19.000
    Package Depth:
    10.000
    Manufacturer's Part Number:
    30071

    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?

    Narrow Results

    1998 CHEVROLET EXPRESS 2500

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

    2006-2009 CHEVROLET TRAILBLAZER

    • EngineType: ALL
    • SubModel: SS

    2004 CHEVROLET EXPRESS 3500

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

    2010-2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: HYBRID PLATINUM

    2009 CADILLAC ESCALADE ESV

    • EngineType: ALL
    • SubModel: PLATINUM

    1998 GMC C2500 PICKUP

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

    2006 GMC SIERRA 3500

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

    2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    2006-2010 CHEVROLET EXPRESS 3500

    • EngineType: ALL
    • SubModel: LS

    1998-1999 CHEVROLET K1500 SUBURBAN

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

    2001-2004 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: BASE

    2002-2006 GMC SIERRA 1500

    • EngineType: ALL
    • SubModel: DENALI

    2002-2005 GMC SIERRA 2500 HD

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

    2005-2006 CHEVROLET SSR

    • EngineType: ALL
    • SubModel: ALL

    1998-2000 CHEVROLET C3500 PICKUP

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

    2010-2012 GMC SIERRA 1500

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

    1998 GMC C1500

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

    2011-2013 GMC SIERRA 3500 HD

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

    2013 CHEVROLET CAMARO

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

    2010 CHEVROLET SILVERADO 3500

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

    2009 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LS

    2006 GMC SIERRA 2500 HD

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

    2007 CHEVROLET SILVERADO 1500 HD CLASSIC

    • EngineType: ALL
    • SubModel: ALL

    1998-2002 CHEVROLET EXPRESS 3500

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

    2006-2013 CHEVROLET SILVERADO 2500 HD

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

    1999 CHEVROLET EXPRESS 2500

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

    2012-2013 GMC SAVANA 3500

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

    2009 PONTIAC G8

    • EngineType: ALL
    • SubModel: GXP

    2007 CHEVROLET SILVERADO 2500 HD CLASSIC

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

    1999 CHEVROLET K1500 PICKUP

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

    2001-2003 CHEVROLET SILVERADO 1500 HD

    • EngineType: ALL
    • SubModel: LS

    2001-2002 GMC SAVANA 2500

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

    2011-2013 CHEVROLET SILVERADO 3500 HD

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

    2003-2013 GMC SAVANA 3500

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

    2011-2013 CADILLAC ESCALADE ESV

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

    2007-2013 GMC YUKON XL 2500

    • EngineType: ALL
    • SubModel: ALL

    2013 CADILLAC ESCALADE (CANADIAN)

    • EngineType: ALL
    • SubModel: ALL

    1999-2000 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: ALL

    2007 CHEVROLET SILVERADO 3500 CLASSIC

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

    2009-2013 GMC SIERRA 1500

    • EngineType: ALL
    • SubModel: HYBRID

    2009-2013 CADILLAC CTS

    • EngineType: ALL
    • SubModel: V

    2004 CHEVROLET EXPRESS 2500

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

    2011-2013 CADILLAC ESCALADE EXT

    • EngineType: ALL
    • SubModel: PREMIUM

    2002 GMC MOTORHOME

    • EngineType: ALL
    • SubModel: ALL

    2009-2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: HYBRID

    1998-1999 GMC K2500 SUBURBAN

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

    2007-2009 CHEVROLET SILVERADO 3500

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

    2009-2010 CADILLAC ESCALADE

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

    2006 CHEVROLET SILVERADO 1500

    • EngineType: ALL
    • SubModel: SS

    2010 GMC SIERRA 3500

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

    2008-2010 CHEVROLET EXPRESS 2500

    • EngineType: ALL
    • SubModel: LS

    2013 GMC YUKON XL 1500

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

    2007-2009 GMC YUKON XL 1500

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

    2011-2013 GMC SIERRA 2500 HD

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

    2006-2013 GMC SIERRA 2500 HD

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

    2003-2013 GMC SAVANA 2500

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

    1998 GMC C2500 PICKUP

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

    1999 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: SS

    2005-2006 GMC YUKON XL 2500

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

    2011-2013 GMC SIERRA 3500 HD

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

    1998 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FIREHAWK

    2001-2002 GMC SAVANA 2500

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

    2006 CHEVROLET EXPRESS 2500

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

    2011 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: ALL

    1999 GMC YUKON

    • EngineType: ALL
    • SubModel: ALL

    2006-2009 GMC SIERRA 1500

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

    2013 CHEVROLET CORVETTE

    • CC: 6162
    • Liter: 6.2
    • SubModel: ZR1
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2007-2009 CHEVROLET SILVERADO 3500

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

    2011-2012 GMC YUKON

    • EngineType: ALL
    • SubModel: DENALI

    2013 GMC SIERRA 1500

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

    2012-2013 GMC SAVANA 2500

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

    2011-2013 GMC SIERRA 3500 HD

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

    2004 CHEVROLET SILVERADO 1500

    • EngineType: ALL
    • SubModel: SS

    2000-2002 CHEVROLET EXPRESS 2500

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

    2009-2013 CHEVROLET SILVERADO 1500

    • EngineType: ALL
    • SubModel: HYBRID

    2006 CHEVROLET SILVERADO 2500 HD

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

    2009-2012 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: ZR-1

    2004-2005 CHEVROLET SILVERADO 1500

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

    2011-2013 GMC SIERRA 3500 HD

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

    1998-2000 CHEVROLET K2500 PICKUP

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

    1998-2000 GMC K3500 PICKUP

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

    2003 CHEVROLET EXPRESS 3500

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

    2011-2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: PREMIUM

    2006-2009 CHEVROLET SILVERADO 1500

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

    2010-2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: GRAND SPORT

    2007 GMC SIERRA 2500 HD CLASSIC

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

    2002-2006 CADILLAC ESCALADE EXT

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

    2004 CHEVROLET SILVERADO 1500

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

    2009-2010 GMC SAVANA 2500

    • EngineType: ALL
    • SubModel: SL

    2006-2013 GMC SIERRA 2500 HD

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

    2008-2013 CHEVROLET TAHOE

    • EngineType: ALL
    • SubModel: HYBRID

    1999-2000 GMC C2500 PICKUP

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

    2001 GMC SIERRA 3500

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

    2008-2013 GMC YUKON

    • EngineType: ALL
    • SubModel: HYBRID

    2002-2005 GMC SIERRA 3500

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

    2001-2004 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: Z06

    1998-2000 CHEVROLET C2500 PICKUP

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

    2000 GMC YUKON XL 2500

    • EngineType: ALL
    • SubModel: BASE

    1998-1999 CHEVROLET C2500 SUBURBAN

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

    1999-2000 GMC SIERRA 2500

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )
    31804 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_2018, m_5, d_19, h_20
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • 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
    Some parts are not legal for use in California or other states with similar laws / regulations