Hi guys back again.I just picked up a 580 case /crank that came with clutch, mag, stator, coils. And pistons, though the mag side is burnt. Can I drop the 600 cylinders on this block? Was there a difrence in stroke or bore. Basicly they look the same. But I'm not going to put all my egges in the basket and call it a day. I'm trying to get this sled going and I'm not too sure of the original motor that was in this thing. It may have been replaced. It's a 04 02 98 chassis.