50cc liquid aluminum kit with MVT COMPETITION G2 B MBK 51 / AV10 cylinder head

Straight from the experience of MVT and AGP (Alain Godou Production) in competition, here is the G2B high engine from MVT . This high engine has a stud center distance of 43X50mm like the original MBK 51 cylinders but it is designed for a 39.7mm stroke with an 85mm connecting rod, so it must be installed on special crankcases like the MVT G2B! It is therefore to be installed in combination with a 39.7mm stroke crankshaft and 85mm connecting rod like the BIDALOT of the period or the MVT of today (reference VI41). This kit has a huge booster exhaust, a one-piece cylinder head with a polished finish frustoconical combustion chamber. A DEC of 2mm is applied for a good hold and a good firewall of the O-ring. Of 6 intake lights. The architecture of the very massive cylinder leaves room for the work of a preparer, the fixing of an exhaust 2 screws, 3 screws... We can model the whole as we wish. This competition set has very large diagrams and a very high compression ratio, it must be accompanied by an engine configuration which follows, exhaust, ignition, large carburetion, variation being capable of exploiting the 12,500 / 15 500 rpm power...

*Difference G2A / G2B :

G2A: Racing type cylinder, intended to be mounted on the original 41.8mm race and the original crankcases or prepared racing crankcases

G2B: Racing cylinder, designed to be mounted on 39.7mm racing and G2B racing crankcases designed to accommodate large intakes, 39.7mm crankshafts and G2B cylinders