CY27

The CY 35mm bore 2-bolt cylinder.

Race Porting offered, HT.

HP; 5.50

(26.9cc race ported top end kit for stock stroke crank, 5.5HP)
(3 top end kits; CY35mm race ported kit for 2mm stroked cranks “crank not included”, CY35mm race ported kit for 2mm stroked cranks “crank included”, 36mm GP290 cylinder champ ported HT 30.5cc kit with 2mm crank)