OK I ALREADY DOCUMENTED THE BROKEN VALVE KEEPER THE MACHINIST FOUND WHEN DISSASSEMBLING THE HEADS ....NOW LAST WEEK WHEN THE MACHINIST WAS BEAD-BLASTING MY PISTONS HE FOUND A BIG PROBLEM!....3 OF MY PISTONS HAD CRACKED SKIRTS...#2 #3 HAD SMALL CRACKS ON ONE SIDE ABOUT 3/4THS OF AN INCH, THE #7 PISTON WAS THE WORST :ball: SEE PICS....PURCHASED NEW HYPER-TEC PISTONS HOPE THIS IS THE LAST SUPRISE! :rant: