KB's in a 318 with No Re-balance

Putting additional weight out on the small end of the rod, is, in my opinion, is not a good idea..........I always thought that the idea was to remove as much mass off the small end as possible to reduce inertia loads on the rod.....it is alot less stressful to slow a 132 gram pin down vrs 212 gram pin, that is 80 gram difference, or call it almost 3 oz......I think that is alot

FWIW.....my "Mean Teen" as I call it started life in a 1971 D600 Medium duty truck, cast crank, 2899496 rods (340 rods), cast pistons...I'm sure that as a truck engine, the pistons were heavy as hell for durability reasons, I pulled out the rods and replaced them with a set of lighter 273 rods and replaced the pistons with a "give me" set of cast rebuilder Sealed power pistons, didn't balance, actually didn't even check, never noticed any bad vibration all the way out to 7000 rpm, maybe some day I'll pull a bearing to see if any tell tail information has been left behind