180cc GY6B Gasket Set, Part #130-31
Gasket set for GY6B short-case engines with the 170cc and 180cc Big Bore Kits. Cylinder Head Gasket Inner Diameter: 63mm. 13 Piece Set. This is for the GY6B Short-Case Engine Style. The head & base gasket fit the GY6B engine if you have an older style engine you need to buy Part #130-32 along with Part #130-31 to fit the older style GY6 Engine with the 180cc Power kit.