British Spares British Spares
Triumph Twin Big-Bore Kit 

Morgo Triumph 650cc To 750cc Conversion.


This is a conversion used by thousands of enthusiasts around the world allowing a Triumph 650cc unit or pre-unit motor to be increased to 750cc, when used with a 9 stud head, without modifying any of the standard parts. The cylinder barrel is a one-piece casting, with increased finning area for better cooling and weighing only a few ounces more than the standard barrel. All pistons have cutaways for larger valves; standard compression ratio is 9.5:1 with standard gasket. Oversize pistons & rings are available for this kit. Kit comprises: barrels, standard-sized piston assemblies & head gasket.

Triumph Twin Big-Bore Kit - Triumph 650cc To 750cc Conversion

Big-Bore Kit for Triumph 650 Twins No:70-6304BB