Lockbolt

Cyl base nut 5/16 unf deep T140 to 1985

CEI cyl base nut T100 T120 to 1967

Cyl base nut 12 point T150 T160 A75 and some T100 and T120

Tappet guide block lockbolt

Tappet guide block T90 T100 Flat for early non tapered seat

T140 Exhaust and Inlet Tappet guide block oil feed flat seat

Exhaust tappet guide block (oil feed) T120 T140 Tapered seat

Inlet tappet guide block T90 T100 T120 T140 Tapered seat

500 / 650 Inlet tappet guide block T100 T120 with tapered seat

Oil feed Exhaust Tappet guide block T120 Tapered seat

Trident tappet guide block T/S Two holes T150 T160 A75

Trident tappet guide block D/S Single Hole T150 T160 A75

850 Triple Cylinder liner oversize for use with 71mm 650 pistons (use with bored out standard barrels)

Cylinder barrel 650 9 stud Tr6 T120 with oil feed

500cc Cylinder barrel T100

T140 Cylinder barrel 10 stud (later non oil feed)

T140 Cylinder barrel 10 stud (Oil feed)