Projects Intake for Dodge 23 inch flatheads

I've been posting about this on P15-D24, but I'm working on a couple idea's for intake manifolds for my 230 flathead. If I could buy an AoK intake (dual carb) I would, but I can't. So what I've done is study their design as best I can, and tried to duplicate the basics. Mine uses 6061 flanges for the block, and it's about $80 to buy the ones I need for a single intake. The price goes down to about $60 if I buy at least ten sets, actually I'd be buying 20 of the end flanges, which are just mirrored images.

I've got one design that is a copy of the AoK intake, and I did another over the weekend that uses 3x Keihin CV40 carbs off a Harley.

I can post the solid models and drawings, but if people would be interested in the flanges, a group buy would drop the price for everyone.

BTW I had some custom flanges made for my Langdon manifolds also, they cost me about $18 each and were made from .375 mild steel. I'll post the drawing if anyone would like to get some. I didn't find anything that had the right hole spacing and also covered the entire flange area, so I designed my own.

Let me know if I'm breaking any rules with this post. I can't pose an offer like this on P15-D24.

 

Here is the exhaust flange.

 

This is my attempt to copy the AoK intake. The original is of course cast. I can't pay for things like that, so this has machined flanges and I'm using schedule 40 elbows and in a .25 wall tube for the plenum section. Carbs are sitting at 2.5 deg. I copied the block flanges from an Offy, and I copied the outline of the carbs from the same.

 

In an attempt to reduce the costs a bit...

 

Built this for my Dodge. Cut my own flange, modified a set of SBC headers. Used 2 Langdon Weber 32/32. Runs great

 

Do you need any measurements from the AOK intake?
The second one does look simpler to make, but doesnt have the advantage of raising the carbs up. If you had taller carb flanges, it might offset that a little.

 

Well, it would be great to at the least do***ent it for posterity. I thought about the carb heights, but I'm not sure other than ram effect there is any advantage. The second one does require the mixture to make a tighter bend, but from the bottom of the carb it's the same. IDK if that makes any change, especially at the lower RPM's these motor would see. Love to hear anyone's opinion.

Oh, and you lucky dog

 

For anyone interested in the strange and bizarre, the CV40 design. Just "blocked out" not finished.