overhauling price will depend what needs to be replaced. madali lang umabot ng 80k if all original parts yung papalitan and madami sira.

pero if it's running pa kaso nauubos lang oil then that seems a bit high. malamang at most piston rings, new or honed sleeves and new conrod and main bearings kung kinain na due to lack of oil, plus the normal work to the valves and seals in the head. pero that's probably the worst case na.