If it was my car: I would remove the bolts, clean the sealer off the threads and put them back in. Use new sealer,a nd re torque. If you are careful you will not breeak the seal between the head and block (have you ever pulled a Toyota head without a dead blow hammer?). Reinstall the fasteners with new sealant and re torque.....but that is what I would do
YMMV, void where prohibited by law.....
