I am working on a intake to mount two DCOES , sidedafts, on my blown flathead for my 34 3 window coupe. Motor is a 276 ci. Got no idea where to start on jets, air correctors, emulsion tubes, chokes, and idle jets.
I think they're neat on a more modern OHV engine, but they just don't "jive" with a HAMB-ish Flatty. So, I'd say "no" to putting them on a Flathead. If you were building a race car, I might say differently. BTW, Baron has produced an intake to put 4 down-drafts on the Flathead, and Flathead Engineering has one that uses 4 Weber-style throttle bodies for EFI.
I've been an Alfa fan since my Spyder. I will someday put a 2.0L Alfa motor in a modified. They are neat little engines. Look even better with Webers hanging off the right side. Mine motor was a ****a fuel injected version. Talk about a learning curve getting that set-up correctly.
I've got a pair of new 45 DCOE's -- with an Inglese manifold that mounts two of them on top of a four-barrel style mount. I was planning on testing them on a blown flathead at some point (just for the hell of it . . . don't get worried boys!). They're definitely traditional in certain cars, just not a flathead powered hotrod (at least in my eyes).
****a injection was originally developed for diesel engines. Alfa Romeo modified it for use on their twin cam and it always was a cludge. There used to be some Weber adapter/conversion kits around, to use DCOE's on the ****a intake manifold.
Here is a link to a discussion of Weber side drafts DCO3 & DCOE. It looks like DCO3 were from the 50s sand cast and hand built and very expensive. DCOE came out in '59 and used buy '60 on some European race cars. https://tentenths.com/forum/showthread.php?t=153511
The Jalopy Journal
