TRIUMPH OIL DRAIN BOLT SET T100 T110 500 650 Pre unit ALUMINUM HEAD Norton Exhaust should fit all 'big-twin' Guzzi

should fit all 'big-twin' Guzzi with solid-mounted carbs

as there were several different styles

Dimensions are 38mm x 50mm x 7mm

before ordering please

the type with 180 degree external drillings for a pin spanner

TRIUMPH OIL DRAIN BOLT SET T100 T110 500 650 Pre unit ALUMINUM HEAD Norton Exhaust should fit all 'big-twin' GuzziNOT suitable for cast iron heads. STAINLESS bolts and copper washers to suit Triumph pre unit models with aluminum heads only, I believe, as fitted between head and pushrod tubes, intake and exhaust sides. Part numbers 70 2767 0984 for the bolts, 70 1335 82 1880 for the copper washers. Please check your own parts book to be sure they will work for you.