Both heads will be replaced, as a matter of fact the new castings are already at the machine shop. Both heads are cracked for what we believe is a beat set of springs. Both the intake and exhaust runners are broken on 5 separate cylinders with the cracks emanating from the valve seats. The one head has 2 cracked pairs of runners and the other has 3, only reason we found this was #1 had 70% leak down after our last dyno pull. Honestly I was expecting to change a head gasket which would have been no big deal, what we did find... Not cool.
So a new set of heads, new springs and lifters will do the trick. We are going up on the spring pressure to hopefully avoid this from happening again, the big question is whether or not it will be done for next week to go to World Cup.