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Thread: HEDDERS OR MANIFOLDS 99 ls1

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  1. #1
    Join Date
    Apr 2005
    Posts
    21
    Any one know what hedders or manifolds will work on the 99 ls1 in a 1500 4wd remember it has to clear the front driveshaft .I think i saw where this swap was done before in a 4wd.OR will the stock hedders work??thanks Guys

  2. #2
    Join Date
    Feb 2005
    Posts
    131
    If you want long tube headers, I know ASM makes some for 4x4. Pretty much any short tube header will work but not worth the money IMO. Or just use the factory manifolds, they'll bolt right up.
    New Truck on it's way: '07 Classic GMC 2500HD DuraMax LBZ

    03' Silverado ECSB 4x4 Z71 LQ9, TR230, Patriot LS6, 31lbs, Trailblazer stall, Corvette servo, Corsa Touring,
    HP Tuners


    SOLD - 99' Silverado ECSB 4x4 5.3, Edelbrock RPM, Nitto Terra Grapplers, Texas-Speed Tuned 02' PCM, LT1 fans

  3. #3
    Join Date
    Jul 2005
    Posts
    11
    We are releasing new headers for that fit a 99 Silverado 5.3 with 4 wheel drive....email me if you are interested....
    Mike Turner
    01 8.1 Burb
    http://www.speakeasy.org/~tracer/LOG...uz%20small.jpg
    Perfection's in the Vision...
    PH: 425-427-6690
    Bringing innovative, affordable accessories to the automotive world…
    www.focuztech.com

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