heres mine, its really odd. n47 block, bored out, pistons stick above block .020. p79 head, decked .080, with custom one piece .080 shims. got 2mm gasket and cr of about 10.8:1 talk about the hard way to do it. bought stock over size flat top pistons, and they stick up on stock rods and crank. go figure. my other motor, f54 block (stock flattops), p79 with the same treatment, 10.5:1 cr. much easier and cheaper.