The 5.9 Magnum pistons and Magnum rods are both lighter than the 360 LA piston and rod.
The 1995 Ram FSM has the numbers but the correct Magnum 5.9 V8 piston weight numbers and piston drawing are in the V10 engine section of the 1995 FSM.
The weight and drawing of a piston in the Magnum 5.9 V8 section of the 1995 FSM are incorrectly the old 1992 TBI 360 V8.
I do not think this is corrected even in the 1998 Ram FSM, maybe not in the 2001 FSM.
I think from 1995 to 1996 the rear external balance weights went from on the 46RH torque converter to a weighted timing slotted flex plate.
I have the book “How to build High Performance Chrysler Engines” by Frank Adkins but it does not have the tables of different weights and lengths.
The Book “How to build big inch Mopar Small Block Engines” by Jim Szilagyi might have the tables.
https://www.ebay.com/itm/1159026657...msclkid=e77323b2243f10e5796446ff7acf4e7fA machine shop that routinely does engine balancing could do a custom mix job since the 360/5.9 is externally balanced.
