2004 focus svt 179,000 miles currently i have my engine apart for bent valves and i have noticed the cap caps are hand engraved numbers and a number on the outside end near the head gasket. these appear to be raised up not recessed like a cheap engraver does. i have all the ford service records since new ...i bought it with 55,000 miles on it .and no engine work was ever done it appeared untouched/umolested with ford parts/gaskets so i dont think it was ever apart.anyone ever see this? is it possible these engines were hand assembled? thanks lee