No idea, id have to weigh the pistons to the rods and then figure what a 360 bobweight is. If its a 360 crank , itll take a 360 bobweight. You think it would be as easy as weight matching the 318 truck pistons to some stocker 360 dish pistons? I got the bigger rods already and a set of heavy 273-2 pins. If my 273 was still apart, Id chuck it in there with 273-2's and see where the pistons end up at above the deck. Well see how the crank comes out tomorrow.