Hot Rods Let's see your headers. Custom built only

How about 1 big header? For my 1937 Buick Century coupe, 320ci
Lots of bends, and a megaphone tube as the log tube, ends up as a 3" but necks down to single 2.5" for the rest of the exhaust. I need to get it and the intake ceramic coated soon but i have some polishing up to do first.













Leading into a Porter Steel pack, i think i did 2.5" all the way back

 

I know this isn't a contest, but here is one built buy my buddy Josh Shaw that is the best I have ever seen:






For a Miller Indy car. Made from original blueprints drawn by Leo Goosen. Each pipe is a hand formed tapered cone which was then packed with sand, heated, and bent to fit. Note that the tubes are different in each pair. The outside radius of the rear tube matches the inside radius of the forward one. Silicon Bronze welded and will be nickel plated.
I have more pics and information if you would like me to post them.

 

Heres mine 425 nailhead

 

My first attempt at headers, 304 ss

 

FIRST time and you tried ss--wow!

 

My homebuilt custom headers for the Buick 401 Nailhead in my 1930 Model A shortened Sedan.

 

Love the caps Paul, any more info on how you made those?

 

You've got a little less room than me by the looks of it, but I had a heck of a time making the headers for my 348 in my 40. I decided in the end to go out the back of the inner fenders, but it was still really tight around the steering box. I wanted long equal length tri y's, which just made it all way to complicated. Diameter of tube and length of primaries and secondaries and collector worked out on some computer calculator thing by a guy on the 348/409 forum, based on a basically stock 348 with a mild cam.
The front pipe on both sides runs as close to the block as I could, to give all the others enough room to roll around above the chassis rail. The primaries run to the firewall, where the headers are split, an secondaries carry on into the collector. I had to split them there just to be able to get them in and out of the engine bay between the inner fender and the rocker cover.
I think i'd do it differently now, but i'm not doing it again, .... ever!

 

FAR more art project than exhaust system--wow!!!

 

NOT MINE; Sexiest set I ever seen!

 

Full disclosure, I was a pipe welder/fitter by trade. Just 3-4 months on a stainless job though. Those took me a week per side. lol

 

You guys are killing it , with all these great headers. Thanks for sharing.

 

yes please

 

Josh is a master craftsman. He restores old racing cars, sprints and Indys. He has acquired many original prints for Millers and can reproduce many parts to exact original specifications. The header tube below literally snaps into the flange and fits the collector with zero gaps. He mitered the tube by mathematical calculations, not trial and error.

The flanges were fabbed by Send Cut Send to the original print.
The tapered cones were formed over a steel mandrel. Something I found interesting is that the seam could not be placed to the inside of the bends. They would collapse when heated, even packed tightly with sand. So the seams were placed at the bottom before bending. I was supposed to be the torch guy, but during experimentation he found he was able to hear and bend all by his lonesome. Heating the tubes was about 80% on long side of the bend and gradually applying less to the sides with nothing on the short side.



This is one of the prints: Not sure how well it will show up here, it's pretty faint.


Here is an original 1926 Miller


The flanges were fabbed by Send Cut Send to the original print.
The tapered cones were formed over a steel mandrel. something I found interesting is that the seam could not be placed to the inside of the bends. They would collapse when heated, even packed tightly with sand. So the seams were placed at the bottom before bending. I was supposed to be the torch guy, but during experimentation he found he was able to hear and bend all by his lonesome. Heating the tubes was about 80% on long side of the bend and gradually applying less to the sides with nothing on the short side.

 

I built these FE fender well headers for my '40 many years ago.