273 guys..Heads up!!!!

I figured out who it was Rob R & i sent him a pm about it. The heads are the o.e. small intake bolt ones that came on the motor. If ya look @ the pics of the gasket close up the actual fire ring that does the sealing is back 1/4 inch from the bore dia. & the cylnder head dia is right @ 3.90 ish i didnt figure it would be a problom........:oops: guess not! sucks popen the heads off a nice shiny pretty motor but @ least nothen got severly damaged! I did a compression test & all holes are rite @ 185 give er take a pound so all is good in #5:prayer: