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Billhilly · 03-01-2018, 01:27 AM

I've got Hedman 69830's in my '72 K2500. But I run an auto. Don't know if I recommend them or not.... don't have anything to compare against.
They have lasted over 11K miles. So far. I guess the biggest issue I had was the header port shape (and flat surface around it) was a pretty distant relative to what the ports on the head were actually like. I actually ended up adding some weld to the headers and got them resurfaced to give some decent sealing surface. Header bolt access is medium, and I run plug boot protectors because some of them are basically hard against the headers. Oh, and I run Earl's Performance gaskets https://www.summitracing.com/int/parts/ear-29de3berl Am I doing a good job of selling them! Anywho, here's some pics!

03-01-2018, 01:27 AM	#6
Billhilly Registered User Join Date: May 2001 Location: Wairarapa, New Zealand. Posts: 782	Re: Another header question I've got Hedman 69830's in my '72 K2500. But I run an auto. Don't know if I recommend them or not.... don't have anything to compare against. They have lasted over 11K miles. So far. I guess the biggest issue I had was the header port shape (and flat surface around it) was a pretty distant relative to what the ports on the head were actually like. I actually ended up adding some weld to the headers and got them resurfaced to give some decent sealing surface. Header bolt access is medium, and I run plug boot protectors because some of them are basically hard against the headers. Oh, and I run Earl's Performance gaskets https://www.summitracing.com/int/parts/ear-29de3berl Am I doing a good job of selling them! Anywho, here's some pics! Attached Images __________________ 1972 K2500 Long Box 400/350 Last edited by Billhilly; 03-01-2018 at 01:33 AM.