engine parts 1.Dia of cylinder: 56.5mm 2.Dia of pin hole :15mm 3.Total height:52. ... engines and so on.4.Piston ring,piston pin,piston kits,conrod, conrod bearing, eccentric shaft, ... request.7.We can promise that our quality of the product is very high! We were founded on JULY, ... stratton,Kohler and so on.Our company is the exclusive assembly factory of Zongshen,a famous motorcycle producing company ...