I have reused many sbc and bbc head bolts with some pitting, 65 ft.lb. sealer on the threads and oil under the head of the bolt, no re-torque and have no blown gaskets.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy