This brand new Valves assy is for Gy6 150cc version B 4-stroke engine Chinese Go kart and 15" big rim moped and scooter, please note it can not replace 150cc Version A that need shorter valves

The intake valve-27mm and exhaust valve-23mm, It is with 81.5mm tall.

If need whole head assy, please order item 400547584740

150BValves