No oil seals included. 3-7/16" / 3-1/2" bore. With 1mm (.040") PTFE coated paper head gaskets with Firering and silicone bead and 0.75mm (.030") fiber reinforced paper cylinder base gaskets. Otherwise complete with all gaskets, O-rings and primary gaskets required for a complete engine overhaul. Complete as shown. OEM replacement reference 17029-70.
