Is there any way you can have your shop duplicate this build? I would be willing to pay the extra $$ for shipping for such a clean part.

 

I'll second that, I would happily pay a little extra to ship such a clean item as that.

 

I'll go ahead and "third" that.

 

Theoretically, but it would involve me driving out to the shop where I got the elbows then over to the welder who fabbed it up and I won't be able to take any time off at the office any time soon. IMO, it's the elbows that make it such a tidy piece. You can get them from Sachse Rod Shop here:

Sachse Rod Shop

Any competent welding shop should be able to cut a base plate from some 1/4" aluminum plate and TIG weld everything together.

 

I was looking at the underside chamber on my Offy 'C' manifold.

The pocket extends a ways into a 'hidden' double wall cavity around the threaded hole's casting boss. I'm pretty sure the cavity goes around the bolt boss all the way.

I thought to promote better circulation and heat transfer of the water, the heat plate should have a divider fin welded on it, like a plenum divider in a V8 manifold. That would force the water around the long way, instead of flowing directly from one inlet pipe and out the other.

The fittings would have to be on opposite sides of the divider fin of course.

O >
-----bolt
O <

 

I'm pretty sure the force of the water would fill the entire cavity with water. If circulation was a concern, you could extend one of the fitting pipes up higher into the manifold.

 

I'm pretty sure a dividing fin won't be necessary as well. As long as the fittings aren't right next to each other, there should be sufficient flow to heat everything as desired. I believe the fin would add an unncessary complexity to the design as it would have to seal against the bottom of the manifold to do any good. If the area were larger, I could see the use of a dividing fin.

 

One would do no harm...nor much good either.