Was lucky to find McCulloch supercharger at swap meet. This is early non-water cooled model. Has 4 mounting holes for fan on front pulley. Missing spring for tensioner, bracket for generator, water pump and crank pulleys, which are 3-belt. Anyone have parts or photos of what I need? I have promo brochure, but would like to get any tech material - blow-up of parts, rebuild info, etc. Putting this on a 59A with 4 1/8 stroke, 3 5/16 bore, Joe Hunt mag. Plan to mate it to one of my '37 Cad/LaSalle floorshifts. Anybody heard of adapter for this combo? No idea what I'll put all this in - I'll get to that when job's complete. Email me at flatheadquarters@rogers.com, call me at 416.886.3454. I'm in Paris, ON Canada. Thanks, guys!
There was a few articles on street rodder magazines website that i was reading not too long ago on these and it showed one get rebuilt from memory. Was a really good couple of articles. I'd be google searching that.
Mine is a 1937.. Elrod also has a mcculloch on his model a. Check him out or maybe he will chime in soon. Posted using the Full Custom H.A.M.B. App!
Hey man. Congrats on your McCulloch find. Here is a little info on them. A photo of the parts included in the 1st year one from 1937. The following year in 1938, the blower changed a little bit and came with the intake. This first year is pretty crude. This photo shows the tensioner in real life.... Here is a shot of how the generator mounded to the drivers side head and ran off the rear pully. And a few advertising images...
Hey, Elrod; Many thanks for the McC info. Mine must be '38 - bolt holes for fan on front pulley, has manifold but no water cooling outlet, tensioner is controlled by spring resembling watch spring - but I don't have it. I'm still looking for 3-sheave (belt) pulleys for water pumps and crank - sounds like needle in haystack, but I'll keep trying. Really appreciate responses, guys. I was able to get the 2 Street Rodder articles. Bill
Yup. Sounds like you have the 1938 one. Has an arrow cast into the top of the aluminum housing that shows the direction of the air. More like this one. Those three pulley waterpumps are almost impossible to find. Trucks of the era used two belt pulleys though and those are fairly available with some searching. ..
Looks more like mine, but it has water outlet and 4-belt pulley. Mine has no water outlet and is 3-belt. Wasn't aware there was a 4-belt, but already decided to make one. Got 2 NOS 2-belt water pumps and 2 additional water pump pulleys. Got 2 NOS 2-belt crank pulleys. Have 2 NOS generator pulleys to convert McC from 3- to 4-belt. Planning to use 4th belt for generator, which I'll mount in front of engine, instead of behind s/c. Have m/c shop buddy who'll do the magic with the pulleys. Doesn't this beat shit out of a crate SBC? Thanks for helping make a Flattey come to life, guys!
this is my 37 blower project pile, maybe it will help ID yours. Also the water connections were for warming the unit in cold weather, not cooling.
Thanks, Roadster. Glad to know outlet is for warming - had concerns about overheating - warming not a concern. Serial # on mine is 1154, 652 later than yours. Anyone have info on when exactly the McC was intro'd, and dates when design changes were made? When was this basic design discontinued? Was it still being made after WWII?
The Auburn guys with supercharged engines typically block the water tubes since they are not driving the cars in the cold which eliminates leaks.
Mine has the full rectangle brace under the snout and I know a little later they were cut on an angle for clearance.
1937 was the first year, and they were made for the 1936 fords with the water pumps in the heads and the water outlets that were on the tops of those front mounted water pumps. I'm guessing they made about 800-1000 of the first year ones based on my discussions with people and their serial numbers. They included the early head mounted water pumps with triple pulleys. Like Roadster1927 mentioned above, the gusset plate below the snout is a solid rectangle. I think this is an early one. They changed this gusset to a triangle later to allow more space for the oil return to the valves Well, surprise, Ford changes their engine design that first year of McCullochs in 1937 to have water outlets in the center of the head like we are all used to seeing. So for 1938 (2nd year)McCulloch changed their design to accommodate and included the intake and different water pumps like truck pumps with the triple pulleys. They kept this design through 1939 (3rd year) but I don't think they were selling like McCulloch hoped. Racers tried them out and they really didn't give a competitive edge. I've seen old photos of dirt trackers running them and even robert stack from unsolved mysteries ran at the dry lakes with a banger that had one cobbled up to it. I think they stopped and picked back up in WWII with the rotory ones in late 40s, early 50s Here is the 50s version on a 49-53 flathead.
A friend of me is looking for a worm and gear for a 1938 Mc Culloch supercharger pleas contact me if you know an adress where we can get this parts.
The Jalopy Journal
