BILLET THERMOSTAT HOUSING
( £37.50 EXC VAT )
Two larger pulley sizes (4.220" and 4.720") are available, designed to slow the water moving through the radiator to allow it time to cool - an important factor on any race engine.
For reference, the original stock pulley measured 3.875".
Please note - on installation you must first check for clearance between the pulley and cylinder head.