Original Posted By:> mike cushway
Howard, Though they are similar, the tractor engine is much more robust indesign.Remember, it was made to work endless hours all year long on sometimesvery little maintainence. I would guess it to be at least 50# heavier.At best you will get about 25hp out of the tractor engine.Did you know that Funk made a V-8 (flathead) conversion for the 8N.Are there any Piets running with the flathead V-8?John Deere preferred and used the babbitted rods and mains right up intothe late 40's. Farmers were frugal and would rather adjust the babbittshimsthan overhaul with inserts.Howard Wilkinson wrote:> Mike:> I've long wondered about the A engine and the Ford 8N & 9N tractor> engines which appear very similar, but use inserts rather than> babbited bearings. I don't have any specs on these engines though I> have in the past done major overhauls on a couple of 8Ns. Rumor has> it that the 8N motor is a modernized variant of the A engine, but> there are a number of differences. The 8N has two distributer> locations, neither of which corresponds to the A which has the> distributer hole in the head. One variant uses a front mounted> distributer (older), and the other variant has a side mounted> distributer alongside the block. Both to the best of my knowledge use> Ford's famous paper thin sleeves known as "tin can sleeves", and both> have modern bearings and full pressure oiling.> I've been wondering about these engines as a substitute for the A> engine in a Piet a they are a superior engine in a number of ways, but>> -----Original Message-----