October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Valve Guide: Specifications
Valve guide Inner diameter
5.500 - 5.512 mm (0.2365 - 0.2170
Protusion above head - Intake
12.3 - 12.7 mm (0.484 - 0.500 in.)