BSA Cylinder Head A7 used
Swinging Arm
Fins – look good
Threads – look good
Holes – good
We are selling the head with 3 used valve sets -1 Valve Set missing
no warranty
BSA Piston NOS diam. 86.3 mm + 030 Total Hight. 90 mm Compression Hight: 31 mm Gudgeon Pin Diameter: 19.5 mm 1 Piston ring only rusty gudgeon pin new, old stock