• If you like antique engines, vintage tractors or old iron machinery, register and join us. When you register on Smokstak, please give complete answers and fill in all blanks. IF YOU ARE ON WIRELESS, GIVE YOUR CITY AND STATE! NO ZIPCODES! We get hundreds of applications, so there is no time to deal with missing information.

Wisconsin Pistons


Last Subscription Date
I have recently purchased a case of pistons at the portland indiana tractor show. Im having a hard time finding what they fit. The box still has the tag on it and it says Allied Wisconsin Allied Motor Parts Company then below that it says Stock #662P And at the bottom of the label it says Wisconsin Machinery & Mfg. CO.. These pistons measure 3-3/8" across the top and 3-7/8" Tall with 4 grooves for rings. What is weird though is there is a cut in the piston that goes from one side of the piston up to the bottom ring groove and across the bottom ring groove approx 2-1/2" and then back down."Mabey a split-skirt"?. This piston is also marked .040 so its a 40 over piston. I just dont know what it fits.

Here is a link to pictures of this piston.
http://s101.photobucket.com/albums/m78/jkwidener/Wisconsin Piston/