Hey guys, here's the deal. Doing my first big block rebuild. 454 cu.in. bored 0.040 over. Block casting number 14015445. Head casting number 14092360. This engine is going to be used in it's original application, a k3500 4x4 work truck. My question is what head gasket. The block has 2 water passages in the rear while the heads have 2 water passages front and rear. There are a number of options. Some have 1 cutout front and rear some two. All help is greatly appreciated.