THESE ENGINES ALL HAVE THE CT70/Z50/XR50/CRF50/XR70/TRX90 TYPE BOLT PATTERN!!!! * NOTE !!!!!!WE WILL ONLY SHIP ENGINES VIA UPS GROUND!!!! IF YOU PICK ANY OTHER SHIP METHOD WE WILL HAVE TO CHANGE IT OR CANCEL THE ORDER. THANKS FOR UNDERSTANDING CHANGING_ENGINES? L@@K__HERE!!! INSTALLATION_PARTS LIFAN_138 1D3U BIG_VALVE MANUAL_CLUTCH_RR START_IN_GEAR (LF128CC_4_M_i) TEMP OUT OF STOCK $365.99 50CC_LIFAN AUTO_CLUTCH 3_DOWN_SHIFTING (50cc_3_A_T) TEMP OUT OF STOCK $255.99 LIFAN_70cc AUTOMATIC_CLUTCH 4_DOWN_SHIFTING (70cc_4A_T) temp out of stock eta 6-10-08 $289.99 110CC_4A_T LIFAN_4_DOWN SHIFT_PATTERN KICK_ONLY temp out of stock $325.99