3-7/16" (1200cc) and 3-1/2" (1340cc) bore. With 1mm (.040") Blue PTFE coated paper cylinder head gaskets and 0.75mm (.030") fiber reinforced paper cylinder base gaskets. Fiber reinforced paper rocker cover gaskets, and all other gaskets, seals and O-rings required for a top end rebuild. Complete with exhaust gaskets. OEM replacement reference 17034-66.
