2000 COSWORTH FORGED RACE PISTON - 84.5mm bore. New design from leading UK Alfa competition engine builder Jim Evans, available only from Classic Alfa. Suitable for all performance 2000 engines & (with a suitable cylinder head) will provide up to 185bhp. Small end width is correct for both standard & steel conrods unlike most other performance pistons which are offered. Also, by using an 84.5mm bore size you do not need to gap the rings - they are a standard ring size. Supplied with rings / gudgeon pin etc. - each. Manufacturered by legendary race engine builder Cosworth to the highest quality. Price is per piston. See item code EN155 or EN157 for matching liners to suit these pistons.