Hi Guys,

I'm having difficulty locating bolt-on headers for a 2000 Tahoe 4x4 (old body style) for an LS engine conversion. Any recommendations?

 

I have seen two different ones done. One used Pacesetters for a NBS and the second used Thorleys for a NBS. Beyond what the owners told me on those trucks I have not seen an off the shelf long tube that specifically states it fits. The headers on my 6.0L G20 are Speed Engineering C10 long tubes and look like they might clear since they tuck close to the block, but no way to know for sure. I think the engine would need to be in stock rear position mounting, aka 1" toward the rear.

To my knowledge the 99-06 are supposed to be the best fit even in an OBS.

Cannot help too much there as my Tahoe is 2wd and has an 8.1L with long tubes for a 454 OBS.