For those that have never worked on these engines, they were a marvel of engineering for their day. Most of the blocks are symmetrical end to end. A 6-71 can be turned around to a mirror image left hand engine with less than one handful of different parts. The blower is symmetrical on and on. The fuel pump in the 6-71 could be reversed by removing two plugs and installing the spring a check ball from the other side, on and on!
SNOKING