Is anyone using these Sanderson block-hugger headers on a 351M/400 in a 4x4:

http://www.sandersonheaders.com/pagesbypartnum/fc3.htm

If so, are they any good?

 

I used Sanderson Shorties on the FE in my '74 hi-boy. At first they seemed pretty good, but then the inevitable collector flange leaks, plus I had an issue with a new engine running too lean for a short time and that screwed up the welds at the collector. Sanderson reluctantly re-welded them and then re-ceramicized them, but the headers gave up pretty quick at the welds again. Since then, I have used Stan's headers, and they are by far the best I've had compared to Dynomax, Hedman, Sanderson, and I wouldn't change to anything else. And there are others on this site that are sold on Stan's too. Steve

 

Thanks Steve. Where can I get more info on Stan's headers?

 

http://www.stans-headers.com/

 

My experience with Sanderson Headers. Jeremy NEVER calls me back. I sent him pictures of my headers and he was supposed to call me and tell me how much it would cost to replicate them, he never did, I had to call him. Then I sent him my headers and he was supposed to call me when they got them, he never did, I had to call him. Then they told me it would take 2 months to replicate, not create, but replicate my headers. I don't have $4,000-$7,000 to spend on a tube bender so I sent them in. Then when I call back after a month and a half, they don't even know who I am! They charge me $600 up front but they don't remember who I am? So they finally figure out who I am and say they can still get them done in a couple weeks, so I wait 3 weeks and call them back, again they can't find my headers and don't know who I am, they figure it out and the guy who is "working" on my headers just happened to have stepped out for 20 minutes and they want me to call them back. So I call back in 30 minutes and he still hasn't talked to the guy. So he talks to the guy and tells me he's going to come in over the weekend and try to get them caught up, but he can't really give me a time when they will be done. Riiiiiiiight the guy is going to come in over Labor day weekend and "finish" them up. The LIAR'S they haven't even started on them I bet, and what's the saying don't buy something built on a Monday or a Friday? What kind of craftsmanship am I going to get when they were built on a holiday weekend? I'm safe though they won't get off their *** until next week I bet and it will end up being 3 months just to get some headers replicated. Sanderson Headers they don't flow.......THEY SUCK!

 

I bought a set and the welds were full of porosity. I called and the lady I talked too said they were like that on purpose to help them seal. I emailed pics and the next guy admitted they weren't supposed to be that way and sent a new pair that is decent. I have not actually run them yet, but they are the only headers I could find for my application so I hope they are at least decent. If you can find something else I would.
-Johnboy

 

This is all nice to know/hear. I've never used them and now never will.