How do you know your head or cylinder is not warped? did you have them resurfaced when the cylinder was bored? Can head studs stretch...yes, and depending on how much over you went on the torque specs...they most likely are now. If you did not have the head and cylinder resurfaced this teardown, my guess would be that one or both is warped, assuming the head gasket was good when installed...it does not take much.
734 09 Raptor
Meglodon by Bo,KW springs, Web 4 Cam, 54mm TB, 105.5mm CP cylinder, 14:1 CP,Barkers Inframe,Dynatek Coil,PC V,Dynatek Programable ignition,CCP stabilizer,+5 swinger,Boss Noss Sys, Direct Drive Lock-up, KDS Evac valve,HID Light conversion,SPAL fan
Tuned by EHS Racing 78hp 55Tq