I have a 53 Dodge with the stock 230 Flathead six in it. The stock carb.(one barrel) opening were the air filter attaches is 2in 300 thousands(2.300) I am going to make a stack for it in my machine shop cl*** and I was planing on making the I.D. a few thousands over and having 3 set screws to clamp it on to the carb. Later on I want to get a split intake manifold and two 2 barrel carbs. Does anyone know what kind of carbs. I should run? Is the diameter for the air cleaner going to be the same? I figured I could just make two now because when I graduate I probably wont have a chance to use a 4-axis cnc to make car parts for myself! Wish I could afford the intake now!
Maybe you could make the adapter now too. Maybe make it out of two pieces -- the bottom that bolts to the intake that Y's up to a small plenum and a top piece that makes the lid of the plenum with two flanges for the two carbs. With a paper gasket in between the top and bottom halves of the plenum. I don't know anything about designing plenums, but I think if you keep the volume of the plenum small and try to keep the bores through the adapter a consistent size, and look at some adapters other people have made, maybe you can come up with something that'll work.
If you can run a stud down the middle of your air cleaner to hold it on that way, it'll be stronger. Screwing setscrews into soft zinc doesn't always hold all that great, because it chews up the zinc and can shred it up and work loose eventually. If you use set screws, it might hold better if you screw it lightly, then remove the air cleaner and "spot drill" the indentations left by the set screws to make an indentation that will give the setscrew a better deeper grip. If you look closely at the set screw, they usually have an inverted V shaped conical tip. Make the spot drilled dents slightly wider than the little circle of the tip of the set screw. Put some Lock***e on the threads of the setscrews.
I don't want a "Y" from the stock intake too two carbs. I really don't think that would do much for performance either. With a split intake each intake valve is getting a nearly equal amount of air and fuel. Unlike stock or the Y adaptor you are thing of were the two middle cylinders are getting everything. Besides I am talking about the dia. of the carb were it attaches to the air cleaner.
Yeah I guess most two barrel carbs have a threaded rod that sticks up. Mine doesn't but it can be adapted.
Folks have been runnig sual carters and carter webber 2bbls on to to one adapters. There are several sources of split intakes, edmunds and fentons turn up on e bay, and thee is a fellow in Pa who converts stock manifolds into duals. Also Olddaddy of this site has a home page called rustyhope makes them and split exhausts. Check Langdons stovebolt for the 2bbl carter webbers, the two to one adapters and linkage. Langdon will also have some came regrind information. you might also look around for a manifold from a 56 plymouth option that was for a 2bbl. Carb is similar to those used on early v8's up to 318's. This 230 with 7.7 to 1 comprsession ratio was factory rated at 132 HP the regular engine was rated at 125 which is probably where yours is at.
You can also contact Moose of this forum and aske him about fabbing you some intake and header plumbing. 2 X 1 bbl, 3 X 1bbl 2 x 2bbl. Check them out @ http://homepage.mac.com/rmccombs/StumblinIdles/PhotoAlbum49.html
The pics on the link above are the ugliest things I have seen in a month! Really ought to be on a Buick. Maybe mine. Now that ski season is over, starting to get ideas.
Seriously though, the Buick 263 S8 intake and exhaust manifolds are cracked, in poor shape. I was figuring on getting it running with the old stuff, cleaned up and cracks covered up as best I can, and then working my way towards some entertaining plumbing. Nice to see some ideas. If you could, please post something on your intake/exhaust system performance once it gets mounted.
was your original air cleaner clamped on arond the bottom? do they have any welding equipment at the school? if so you could create your own intake and split exaust. I've helped convert corvette OEM tubular headers into pylmouth flathead splits (make sure you GTAW weld them with 409 ss rod). Tom at langdons stovebolt likes to use pinto or vega holley/weber staged 2bbls.
i was talking to a guy about aircleaner adaptors and he said when he made his from aluminum he just epoxied the pieces together.he said he did have plastic one but heat and elements were taking toll on it.epoxy and aluminum, simple and no welding required.
I made a pair of aircleaner adapters last week to adapt my 1-barrel rochesters to edmunds aircleaners. I was intending to make them out of copper pipe, but then I saw the price of the copper pipe I needed ($45 from mcmaster-carr) and changed my my mind. I found some exhaust pipe adapter pieces at autozone that were just the right diameter on each end for $1.50 each. I just cut them to length and cut some slits for a hose clamp to compress on the carb end. They worked perfect and they were cheap. Tom
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