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Hello all,

I own 1965 K10 that i am putting a 430HP 5.7L 350 in, and am having a hard time ordering a set of headers for it. Need 1 5/8" at the inlet going to at least 2 1/2" collector. Although a 3" collector would also work. It being a 4WD apparently makes it very hard to find something fit. Have called at least four of the main header companies, and checked Jeg's, Summit, JC Whitney, they all say they don't have anything for my application. Any help would be much appreciated.

I never found headers for a 63 K10 I had back in the mid 90's. Same answers from major companies or they wanted to sell something they thought might work. I ended up porting the inside of the stock ramhorns that came with the origonal 283. They actually worked pretty good though I'm sure the torque suffered a little. Good luck. Only other option you have is to custom make a set.

Hope that isn't the case. Far too expensive. It has a set on it right now, but they are only 1 1/2". Would prefer not to have to put them back and and have the restriction. With luck another Bolter will have part number I need on hand. One can only hope.