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Marty

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AFIK, "Doug Thorley" headers are no more. There are "Doug's" headers and "Thorley" headers. Thorleys based on the original design, but Dougs are the current "official" DT header. From what I heard, the split had to do with DT's divorce from his wife and the sale of the company. Still, both good products.
Another local header to consider is LaPole, in Anaheim.

I was looking into headers, but am holding off since the truck has over 150k miles. If I need to 'freshen' the motor, there are several choices to consider. As far as headers go, I'd have to decide on whether to keep the old head design or upgrade to the newer GM Vortec heads.
 


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