The magnesium crankcase is machined to accept all the related components that comprise the Revmaster R-2300 aircraft engine.  Replace- ment crankcases are available for the R-2100 and R-2200 model engines. Engine crankcase  completely machined,     $(Call for Price) To order: Please call 760-244-3074, or CLICK HERE to download our printable order form (Adobe PDF).