Technical Flathead exhaust manifold ID

Need a little help identifying these Ford Flathead exhaust manifolds. Checked around locally and nobody has seen anything like them. Aftermarket? Era? Drivers side manifold has some numbers on them, but so far has led nowhere.

 

Kinda remind of a set from a Pilot I had, but it’s been so long I’m not sure.

 

Bigger truck?

 

I don't know if they would flow better than a normal flathead manifold but they look kinda kool!

Dave

 

English Ford Pilot. #AWESOME

 

Yep English pilot cool looking manifolds have some on my 39

 

So my mind still has a few working cells.

 

I remember seeing some similar on a model a roadster built by Jimmy Shine. It was a feature car in the Rodders Journal.I believe his similar set originated in Australia or New Zealand. I seem to remember the owner was the originator of **** crankshafts.

 

Thanks everybody! I knew the hamb would have the answer. Learn something new everyday, and that was it for today!

 

I would like to buy them if they're for sale. I have a real tight situation between my steering box and middle exhaust port.