???----When I look up the 56 cube pistons in an aftermarket book, they are the same from 1886 to 2001 ??-----Why would you compare a 1993 listing with a 1995 ???
Marketing 101-----Build the same basic motor in 3 versions.-----as 50 / 60 / 70 HP.----Same displacement.-----Pistons all the same.-----Tuner the same-------Carburetors different.----Simple as that.
Just like anything else the oil injection is simple if you understand how they work.-----It is important to understand that the systems are called " automatic " , but owner needs to maintain / inspect / check operation of these.
There was a service bulletin in 1994 ( 27 years ago ) to move tell tale to top of the block.-----The latest factory water pump kit has parts / instructions for this cooling system modifications.
The alignment pin is tapered and must be driven out in the direction that the carburetors are.----Then the crankcase falls apart.----It was clearly posted earlier that you needed a 12 point thin wall 5/16" socket !!
