Ok, i got a 6.5 clone in a mini bike.
Flat top piston
arc rod, stock length
billet FW.(S2) finned, timing @ 28
no gov., guts and all
clone 18cc head, milled.08 port and polish
copper head gasket
grade 12.9 bolts for head and side cover
18 pound springs with quality retaners, keepers...