SLANTY BLUES

So to get to the point . I got it home . Today I pulled the head to find a blown head gasket between # 5 & 6. Pulled the plugs out first and all were spitting coolant. #1 piston looks crispy brown , maybe the only one not wet or running lean. I had the head milled .020 and the block also milled .020 to raise comp. Used a felpro head gasket ( stocker). Is that type gasket good enough with the milling done or is there better ones ? Maybe a steel shim type. And also It didn't make a lot of noise while it was running , but after I shut it off and the cylinder fill with coolant it banged and kicked back trying to start restart it. It did restart and spit all the coolant out the exhaust. Is it possible it screwed the rod bearings up from hydraulicing upon starting it up? Any input on this issue will be appreciated. Thanks Guys. Of all the repairs to the old van the engine was the least of my worries.