JAP Piston Hepolite
Bore: 60mm +030
Outside diameter: 60.7mm
Gudgeon Pin diameter: 14.5mm
Bottom to middle of gudgeon pin: 31.25mm
Middle of gudgeon pin to top edge of the piston: 22.25mm
BSA Petrol Tap 3/8" Banjo Pull onThread on tankside top 3/8" Thread pitch 1,337 mm OD: 16,66 mmID Core DM: 15,25 mm TPI 19 Thread bottom 1/8"Thread pitch 10,907 mm OD: 9,73 mmID Core DM: 8,80 mm TPI 28suitable Banjo is 42-8073Please look at all pictures