Exhaust manifold for a Dodge 318-3?

[ellie & Chandler Lewis]

Hey there everyone, hope someone might be able to help me out here.

I have a cracked driver's-side exhaust manifold on my '73 Brave D20. I am desperately trying to find one, and all I've been able to scare up in local scrap yards is a passenger's-side one. Any one know where I might find a non-heat riser manifold?

Thanks for any help you can offer.

--Chandler

[ellie & Chandler Lewis]

Hey Jay, I'll post a pic as soon as I get back home. I'm pretty sure what I need is casting number 2536477, but I'll post again once I can get a good look at it.

[ellie & Chandler Lewis]

Here you go Jay -- some pictures of the passenger-side manifold -- I'm looking for the driver-side version (I think -- but if anyone knows that it's the same, let me know).

edited to resize the pix

[Jay Furney]

I will look tomorrow 

[Jay Furney]

sorry  I got delayed  I will try tomorrow   Jay

[ellie & Chandler Lewis]

Jay, thanks a ton -- the manifold arrived today, and once I can dig a tunnel through the snow to the Winne, I will get it running. But I owe you, man. That was fast shipping!

[David Kreuser]

Hey guys, I have an old Dodge D250, and scrounge parts where ever I can. Try Hemmings Motor News, search Dodge parts.

[ellie & Chandler Lewis]

Cool, will do. Thanks David.

[Jay Furney]

I think I might have what your looking for   

[Rich Thomas]

Welding cast is doable and can be reliable if done correctly, If you have a good welder available I would go for it. One thing you will want to check after the welding is done is to make sure the mating surface is still flat, heat can warp the manifold and you can crack it when you install it if there's a bow in the flange. good luck with your project. 

[Rich Thomas]

Welding cast is doable and can be reliable if done correctly, If you have a good welder available I would go for it. One thing you will want to check after the welding is done is the make sure the mating surface is still flat heat can warp the manifold and you can crack it when you install it if there's a bow in the flange. good luck with your project. 

[david craft]

I made a jig and welded one one time...your supposed to preheat the cast first? And then weld...its a tricky process. Dont just get the rod and try it. Get a professional. I dont know that brazing might be better. Best would be another manifold. I got one before and the ears were warped a little. I put her in the bench vise and ground her flat before mounting. Got a good seal....good luck

[Rich Thomas]

Your right David they can be brazed and successfully. when I weld cast I drill a hole on each end of the crack to stop it from spreading some people go a step farther and drill and tap a hole for a set screw on each end. I then grind the crack to make a v shaped groove for the filler rod( a high nickel rod works best ) also known as nirod. I then preheat the piece and weld it by skip or stitch welding, middle, end,other end then start fill in the spaces until the whole crack is filled keeping the piece hot at all times. the last step is to bank the piece in sand or other material as to let it cool slowly. I've welded manifolds, engine blocks and pulley's this way with good success but have had my share of oh craps as well. It sounds like a big deal but it really isn't that bad. A new one would be the best  but in case you can't find one this is the next best thing other other than headers.