WAS PUTTING TOGETHER A PARTS LIST FOR MY NEW MOTOR (COST VS. HP). STARTED WONDERING ABOUT RECIPROCATING WEIGHT(CRANK, RODS, PISTONS, FLYWHEEL,ETC). I WOULD LIKE TO KNOW ANYONE ELSES PRO/CONS OF THIS SUBJECT...I HAVE MY OWN IDEA/OPINION, BUT MAYBE SOMEONE OUT THERE HAS HEARD DIFFERENT THAN MYSELF...YOU KNOW...TWO HEADS ARE BETTER THAN ONE...THX...LES.