Brand New Engine Cases, Aluminum or Magnesium, Standard 85.5 Bore, Universal Cases. Can be used for Type 1, Type 2 or Type 3 Air-Cooled engines. Case machining options available. Purchase the case you want and put it in your shopping cart, then come back to this item and purchase the machine work you want too. You can keep coming back here and adding more machine work to your cart if needed. Please allow a couple extra days to ship your order when you add machine work. Click more info to choose the one you want.