**** 360 Piston Options ****
Run the pistons at zero deck height, 74cc heads, head gasket with a 4.125" bore size, 0.039" compressed thickness. Pistons have 5cc valve reliefs and the compression ratio is 9.56:1. This set up gives you a 0.039" quench distance. I don't know for a fact but I've read that the KB pistons are more brittle than the speed pro pistons and the speed pros have a friction coating on the piston skirts.