balancer with a 3614369 casting number is for a 72 340 with forged crank. i took this info from the book: how to rebuild your small-block mopar . your torque converter may have a weight used from the factory to neutrally balance it and it doesnt necessarily mean it is for a cast crank engine. externally-balanced engine like the 72-73 cast crank engines used fairly large balance weight(s) welded to them. if the weight you saw on the converter is smaller than 1 in. long, the converter is probably for a forged crank. seems like you have an early 72 340 with forged crank, internally balanced. the previous owner probably didnt goof this time around.
