Furthermore, the valve tappet device so configured has {TAIL ~ a low mass}, and {HEAD ~ favorable running and attenuation properties} 
Furthermore , the valve tappet device so configured has { TAIL ~ a low mass } , and { HEAD ~ favorable running and attenuation properties }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD