i would say drop the subframe and engine and all that, then with the engine out either retap the hole with a helicoil kit or the like, or put on a new head, BTW if you need a head or heads i have a set that i am not using, was gonna port and polish them whenever i get the time, but if you need them let me know

98.5 Black SE ATX S&B filter, SVT MAF, optimized SVT TB, mesh grille, removed orange reflectors, painted rear reflector, gutted pre-cats, optimized SVT LIM, 19lb injectors, resonator removed cant afford an svt but lookin for 1 in nc