Jawa engine, Jawa 559 model. Jawa 250cc Sport Californian CZ.
Crank turns, no piston or head-what you see is all there is. Cylinder does not look scored. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Antique, Vintage, Historic". The seller is "dogsee" and is located in this country: US.This item can be shipped to United States.