This is the Crankcase for the O.S. Max .55 AX ABL Aircraft Engine.
FEATURES: Same mounting dimensions as the O.S. Max .46 AX
INCLUDES: O.S. Max 55 AX ABL Aircraft Engine Crankcase
REQUIRES: Installing all engine components into and on crankcase
SPECS: Displacement: 0.545 cu in (8.93cc)
Width including mounting tabs: 2" (51mm)
Width not including mounting tabs: 1.4" (35mm)
Width between mounting holes same side: 0.69" (17.5mm)
Width between mounting holes opposite side: 1.7" (44mm)"