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JEGS Header Flange for GM LS1/LS2/LS3/LS6 [Round Port]

555-31804

made in usa

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JEGS 31804
$30.99
More than 10 available
Header Flange
  • GM LS1/LS2/LS3/LS6
  • 1.750 in.Round Port
  • 3/8 in. Thick Steel Flange
  • Sold Individually
  • Ships
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    Does JEGS 31804 fit your vehicle?

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    2003 GMC SAVANA 2500

    • Liter: 6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 364
    • Engine Type: V8 ( 6L / 364 )
    • Engine Vin: U

    1999 GMC SAVANA 3500

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: R

    2012 CADILLAC ESCALADE ESV

    • Liter: 6.2
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 376
    • Engine Type: V8 ( 6.2L / 376 )
    • Engine Vin: -

    2012 CADILLAC ESCALADE

    • Liter: 6.2
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 376
    • Engine Type: V8 ( 6.2L / 376 )
    • Engine Vin: J

    2013 CADILLAC ESCALADE ESV

    • Liter: 6.2
    • SubModel: PREMIUM
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 376
    • Engine Type: V8 ( 6.2L / 376 )
    • Engine Vin: J

    2013 CHEVROLET SILVERADO 2500 HD

    • Liter: 6
    • SubModel: WT
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 364
    • Engine Type: V8 ( 6L / 364 )
    • Engine Vin: B

    2009 GMC SAVANA 3500

    • Liter: 6
    • CUI: 364
    • Engine Type: V8 ( 6L / 364 )
    • SubModel: BASE

    2002 CADILLAC ESCALADE EXT

    • Liter: 6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 364
    • Engine Type: V8 ( 6L / 364 )
    • Engine Vin: -

    2011 CHEVROLET CAMARO

    • Liter: 6.2
    • SubModel: SS
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 376
    • Engine Type: V8 ( 6.2L / 376 )
    • Engine Vin: 7

    2008 GMC SAVANA 2500

    • Liter: 6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 364
    • Engine Type: V8 ( 6L / 364 )
    • Engine Vin: K

    1999 CHEVROLET C1500

    • Liter: 5.7
    • SubModel: LS
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: R

    1998 CHEVROLET EXPRESS 2500

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: R
    31804 is rated 3.7 out of 5 by 3.
    Rated 5 out of 5 by from Excellent Quality! I haven't built the headers yet, but the flanges fit perfect, & hole alignment is spot on./Users/lorenbarnes/Desktop/Bobber.jpg/Users/lorenbarnes/Desktop/Bedstakes.jpg/Users/lorenbarnes/Desktop/Grill.jpg
    Date published: 2019-02-23
    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
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    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

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    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.