My '76 yellow Maverick has the I6-200 motor in it. The Maverick brochure says it has "solid state ignition", is that the Duraspark system? Anyway, someday I may want to do the V8 swap, but that is a long, long way down the road. So, in the mean time, I was wondering if there were any suggestions to upgrading the current engine to give it a little more HP? My first thought is replacing the 1 bbl carburetor to a 2 bbl carburetor. What is involved in that, would I have to replace other parts as well? I would appreciate any suggestions or thoughts. Thanks! Art
To put a 2bbl on the integral 1 bbl intake you have to buy an adapter,Clifford makes one as well as a couple other(brand) cheaper ones.Go to fordsix.com-they are inline obsessed and you'll find all kinds of tips/tricks for the 170-250 six.
i think you will have to do a little more than just carb. to see a diff. check out...fordsix.com ...frank...
The Ford inline sixes have a cast in intake manifold here in the states. Those in Au have an alternative but it is expensive here in the states. You can have the log manifold milled to accept a flat adaptor for a Holley or Ford 2 bbl carb. It does away with the necking down from a 2bbl to a 1 bbl carb opening in the manifold. It isn't very efficient to try to put the air from a two bbl carb through that tiny hole in the log that comes from Ford.
The motors have cast intakes. Thats very interesting and weird to me. I have no experience around th inlines. I have been curious though lately.
So what I'm hearing is that this is NOT simply a "bolt on" mod, I'll have to have milling done to the manifold, is that correct? Has anyone bought an aftermarket manifold?
I bought an adapter, Holley/Weber 2 bbl, and air cleaner from The Stovebolt Engine Co. http://www.stoveboltengineco.com/acartpro/product.asp?productid=91 http://www.stoveboltengineco.com/acartpro/product.asp?productid=149 http://www.stoveboltengineco.com/acartpro/product.asp?productid=93 I also bought an electric choke kit (from another vendor) to replace the water controlled choke. I will use Lokar throttle and downshift linkage kits to get the carb to work. I believe hood clearance is going to be an issue. I have another head (if Jamie ever brings it to me) that I am going to have reworked as well has have some of the current carb mounting surface milled down. My 250 is equipped with a 252 Comp Cams and Clifford Header. The Holley/Weber carb should wake it up pretty good. This carb is progressive - small primary; larger secondary - so when I have my foot in it, it should perfrom well and when cruising, get decent mileage. I hope to eventually buy a new head that Ford Six is making and put a Holley 390 4 bbl on the engine.
I don't know if this is a big help, because I only know what is true for the V8s... But, the "Solid State" is pretty much the Duraspark. On the 302, SS was used on 49 state cars into 76. During 76, they introduced both Duraspark I and II. They were all pretty much the same except for some spark curve specifics and the timing retard on start-up. The DS I was 49 state IIRC, the DS II was Kali only, again IIRC. By 77, both Kali and 49 states used one system. It was all about timing curve and emissions standards. IMO, the solid state is probably the best one to have. It's timing curve was based on what was best for the engine, not what made Kali or the EPA happy. Dave
Where did you get the electric choke Kit? Also, do you think I will have hood clearance issues with my 200 I6. I know that they are not as tall. Do you have a link to the Lokar linkage kit as well. Obviously I am copying your set-up. Iknow it is a lot of questions but I hope you can help.
Carb height issues are the same on the 200 and the 250. I'm milling down the log before mounting the plate. I got the electric choke from Electro-Dyn. I dealt with a guy named Tim DePetris - 800-716-8747. I don't remember the part number. I worked with him in Oct and Nov 2005 to find the right one to fit on the carb after you removed the water housing. At the time, they didn't list a part for the Holley 5200. They may now. Thanks to li'l 'ol humble me. I think newtoford is doing the same swap. You can find others who have done this swap here.. http://fordsix.com/forum/index.php Lokar is www.lokar.com. I'm just going to use a universal throttle and tranny kick down cable.
My car originally had the solid state. When I grenaded the original motor in 1979, I bought a 1978 duraspark motor. The only difference is the distributor itself, and what I cant remember. But I do know I can spot a solid state distributor on a car real quick. Did it at Carlisle last year. Dan
i did about the same swap hawkco did. its a stovebolt H/W 5200 2bbl sitting on top of a trans dapt adapter from summitracing.com. it is a bolt on swap. you just need a new fule line between the carb and pump and a few bolts from the parts store. uses the same throttle cable and the stock fule pump flows enough as well. i can feel the diffrence. first thing i noticed was how smooooth the idle was, like its not even running. acceleration is a little quicker but 40mph+ you can definatly tell the diffrence. also since its progressiive, if your just cruising and light on the throttle mpg's wont suffer i think its a must on any I6, espically because how easy and cheap it is
