premium short block 150cc 4-Stroke long-case GY6 gas engine with automatic CVT transmission. Builder's special! Add top end of your choice.

This is the short block (no cylinder or head) version of our top of the line aftermarket replacement GY6 engine.

This scooter engine is used in a wide variety of applications, including full-size street legal scooters, all terrain vehicles (ATVs), <