1912 Pierce Arrow Motorcycle Engine For Sale in Pierce-Arrow - General Posted May 17, 2005 I have a complete 1912 four cylinder Pierce Arrow motorcycle engine. I am not sure that I will sell this, but I am considering it. The engine is complete, and in very good shape. The original exhaust, carb, flywheel, and intake are all still there. The Engine has been stored in a dry area and was stored full of oil. It turns over easily, but does still have compression. All valves still actuate off of the cams, and I'm sure it would run with just cleaning and adjusting of all the appropriate parts.I am curious as to what the value of this engine would be.