I'm building a 48 346 Flathead Caddy motor to go in a 34 Chevy Coupe and reached out to @Cyclone Kevin to see if he had any of his Cyclone Heads for sale. He doesn't have any more in stock but indicated potential for another round of casting & machining if there was sufficient interest. Vote in the poll, hopefully we'll get enough interest to get some more of these things made! - Jason You can read about them here Here is a few pictures from other posts.
I'm with orbitup if they don't cost an arm and a leg I'll take a set. I'm already getting one of the new Hudson cylinder heads, so why not some more.
My blown flathead Caddy '35 pickup but Yes, would be interested for a couple of reasons.. .. one, there may not be another opportunity and two, to build a NA flat Caddy with Edmunds twin carb inlet and Solit lifter cam set that I have.. Appreciate you raising it Jason with Kevin at Cyclone
I've also contacted him and I'm already "on the list" if another run of these heads gets produced, I'd love a set for my '41 Cadillac convertible. They look to be beautiful pieces. I'm also hoping the Frank Burrell intakes get another run of castings, or a different but similar 2x2 intake is made. I heard they were only like $585 each for the last ones, which seems like a bargain compared to what the old Edmunds ones bring on eBay, although that was a few years ago. So if anyone out there bought one of those when they were around and got buyer's remorse, don't be afraid to hit me up, I'll take it off of your hands.
As long as we're all on the subject of Cadillac flathead speed stuff (and I don't mean to hijack), but has anyone ever cut the outlet section off of a right hand exhaust manifold and welded it into a left hand manifold, to make a dual exhaust? I've seen guys cap off the crossover on the RH side and run a pipe out of the back of the LH manifold but that's not very symmetrical looking. And if a left hand, front outlet manifold was made, could a guy leave the rear crossover in place, to work like an H pipe does to even out pressures? Or would the crossover need to be downstream of the exhaust to have that effect? There's gotta be a good way to do duals on a Cadillac like this without some wild custom headers.
I have a 346 I’m building in the next year or two collecting parts I’d probably pick up a set if they were available
Frank sold the tooling to H&H Flatheads, they indicated to me they would start machining the intakes in a "couple months"
I believe that the tank engines had a left manifold that dumped out in front? If so, it might be more simple to repop that. What sort of price do those repop heads sell for?
While we're talking about aluminum cylinder heads, does anyone know anything about the different iterations of Edmunds parts for cadillacs? I have two different style intakes and two different style heads. I would love to learn more about what I have.
All I can offer you on this subject is what an old timer who grew up in L.A. told me about Eddie Edmunds many years ago; according to my now deceased acquaintance, Eddie was, to put it bluntly, a lush. He would sometimes go on a bender as soon as he sold a pile of intakes and/or heads and blow the money that should have, at least in part,paid off his bill at the foundry. Consequently, the foundry would blacklist him for being a deadbeat, and he'd have to start over at another foundry (which, luckily for him, there were many of in post WW II Los Angeles). This explains the several different species of Edmunds products I've seen and owned over the years.
@rg171352 what do you think about maybe guys posting some pics of their heads to show the differences?
That tracks with what I’d been told as well. If Kevin is making another run of heads I’d be down! They are beef and far superior to the old Edmunds. Hey @Squablow there were quite a number of different exhaust manifold configurations for the Caddy Flatty. Industrial, marine, and military applications. So there are quite a few cast iron units that do not have the crossover behind the carb or down the front left bank. Now are those easy to find? Not at all! There’s a a Canadian military museum that has two pallets stacked like cord wood of a version that would fit your ask but they wont come off of them. Outside of that I’ve seen a few pop up on ebay over the past few decades.
Of course I'd love to have a pair of WWII spec dual exhaust manifolds, but I think I can cap the back of the RH one and cut up a second right hand manifold and weld the front exit to the front of the left manifold to basically re-create this setup for dual exhaust. If I run across an extra set of stock manifolds cheap I'm going to grab them and give it a try, but if a legit set came up for sale, I'd be a buyer.
Just spitballing here but I'm thinking about having some rear exit dual exhaust manifolds cast. They would be similar in design to the factory manifolds, think putting a passenger side manifold on the drivers side but without the cross over port. My question is, is their enough room for rear exit on both sides? I don't have a car to check and my application has plenty of room. Not sure about missing the steering shaft either. Whatcha think?
On my '41 at least, it looks like it could be difficult to route rear exit manifolds. Pipes aren't going to fit between the engine and firewall and I'd hate to have them loop over and run down right above the heads between the spark plugs. I could make a big loop over the heads but I think it would look awkward and be a burn hazard if a guy needed to get at the air cleaner or a plug wire or something. Might work on a hot rod though.
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