Gentlemen, I am an MTFCA member and I am English but live in France. I have a T speedster and I bought a Fronty head on sale at Bakersfield 2013. Best advice is fit a Carter BB1 carb. and one is on its way to me. I need a suitable inlet manifold and also a three branch exhaust manifold which I can route to the current exhaust which runs down the right side (as per normal) to a big fish tail silencer. The head is numbered R5 75R and is eight valve. Can anyone advise or help me? Thanks in anticipation, Ken Carpenter.
Welcome to the forum! First a general question – is this your first T or have you had several and already know many of the safety issues such as replace the babbitt thrust washers with bronze thrust washers so the transmission brake doesn’t fail etc.? If this is your fist T – welcome to the hobby also!
Second there were several styles of Fronty heads produced. Below is a short description of several of them from page 11 of the Mar-Apr 1997 “Vintage Ford” (used by permission to promote our hobby and club).
From the short description you shared and the information above it sounds like you likely have the SR Fronty head. But it might be helpful if you posted some photos or confirmed the type of head. Also if you add some measurements of the center to center distances on the ports then if someone has an existing intake or exhaust manifold that will fit they can contact you. I would suspect that any of the custom header manufactures could produce a good quality intake and exhaust manifold to any specification you give them. And shipping would be less if you were able to purchase the parts there rather than shipped from the USA. One firm that has a good reputation is Red’s Headers at: http://www.reds-headers.com/html/headers.html While they do NOT advertise any headers for pre 1928 Fords – clearly they could make anything [yes – it would cost extra].
See also the posting below that discuss headers – building them, where to get parts etc.: Note you could have them built with a block off plate so you could run them through the muffler for normal driving and you could remove the block off plate when you wanted to “sound off” at the track or show.
Mark Herdman had some SR Fronty intake manifolds made up – BUT they were for dual carbs. Still nice thread: http://www.mtfca.com/discus/messages/331880/356849.html?1366491564
Note many of the early carburetors could be fitted with updraft, downdraft, or side draft parts. Letting folks know which type of carburetor you have and the size of the opening etc. would probably also be helpful.
See also the Northwest Vintage Speedster site at: http://www.nwvs.org/Technical/Technical.shtml
And I would recommend contact Neil Tuckett at that Tuckett brothers – he can probably give you some good advice about your project. See: http://www.modeltford.co.uk/# they are located in the UK. Also there is a Model T Ford club/ site in France see: www.ford-t.fr
Again, welcome aboard and good luck with your T.
Hap l9l5 cut off
A Carter BB1 is a good enough carb but not really period correct. They came out in the 30's but most were used on GMC Cab Over trucks in the 40's and 50's. Why not use a period correct carb? All of the overhead suppliers in the day either recommended which carbs to use or supplied one as part of their kit. I don't know one Fronty head from another as to which one would use what carb without looking at them but since you are probably going to fabricate a manifold why not fabricate one for a brass car that would look correct and run well? Zenith HP5A's are a very popular side draft but a little big for every day running, Zenith HP4S are slightly smaller but just as good, there are all sorts of Strombergs, the most popular as far as I know is the Stromberg OS-1 & OS-2. They are both side draft, have an accelerating well, start and run great and are readily available. Plus they are gorgeous brass, have a vertical flange, utter reliability, etc. I probably have 20 or more OS-1 & OS-2's running on speedsters. If you want an updraft, a Stromberg OE-1 or OE-2 can't be beat. Same sizes as the OS series just in an updraft design.
My opinion is that if you are building a 50's, 60's, 70's, 80's re-creation of a speedster then you can run any carb and ignition you want and it's OK but if you are building a correct 20's - early 30's style speedster then run period correct carburetor and ignition.
Your mileage may vary, it's your car you can do whatever you want and my disclaimer is that I rebuild and buy and sell early brass carbs so I am prejudiced and will probably get flak from somebody about promoting my business on the forum. At's OK. If you want to see some pictures, www.strombergof.com
Good head, Kenneth. That's the R head, just like mine. Over here, custom car and motorcycle welding shops have mild steel tubing and flanges, and make anything you want. I like the sidedraft carb on an elbow, to have a place for aircleaner without fighting the steering shaft. -- Oh, you may not have that challenge.