Inliners International Forums General Discussion Ford flathead six help

I have a 226 flathead Ford and want to build a dual exhaust for it.

I have read here on the forum to take the front half of a car manifold and the rear half of a truck manifold to make a dual setup using stock parts.

I am having a hard time finding a car exhaust manifold with a front dump. Would someone have one they would be willing to part with or know of someone who would?

Thanks Don

Dear Don;

Check with French Lake Auto Parts in Minasota, on City Road 3 NW.

I can't find there phone # but their on the web.

www.frenchlakeautoparts.com

Good luck.

The car manifold has a rear outlet and the truck manifold has a front outlet. I did mine by using the car manifold as a base. I marked the car manifold with the approximate location of the outlet on the truck manifold and I drilled it with a hole saw slightly smaller than the outlet inside diameter. I used a hacksaw to cut the outlet off of the truck manifold as far into the manifold as possible to provide a nice flange for welding, parallel to the manifold surface. The truck outlet was then welded to the drilled car manifold in the same position as it had been on the truck manifold. A buddy welded it with an AC welder using nickel rod, no preheat. I removed the heat riser baffle and welded a divider plate in the same location. The plate should not fit snugly as there should be a minimal amount of exhaust transfer between the front and back cylinders (the oldtimers say 80-85% blockage is about right. I did mine in a '51 car for 10 years and it has worked fine. This method is much easier than sawing the two manifolds in two and joining the respective car/truck outlet halves. If I had ground the weld, it would look like a factory casting. I'm sorry but I did not take any photos.

Sure would like to see your manifold.

Dear Russ;

Check out the one on the MOPAR listing. It's on a flathead Dodge 6 and similar to what you need.

It's under '217 question' there.

Good luck.

hey amodel25......what did you do about the heat riser?

I welded the divider plate where the heat riser baffle originally was. I do not have a heat riser. It did not seem to make a huge difference in warm up time.

Dear Vinny;

Most remove it & fill the holes because It's not needed with duals.

Good luck.