Rear of bare engine block with crankshaft flange and rear main s…

Rear face of a bare engine block with the crankshaft installed, showing the machined rear main seal bore and pilot area with the crank flange plugged, plus light surface rust on the block face. Blue-painted areas are visible along the block's edges and the bellhousing flange bolt holes are open.

AI caption August 2010 · Photo 76 of 201