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Performance inlet valve to fit 2000 engines. 45mm diameter head - 1mm larger than standard. 9mm (standard) valve stem diameter with standard 30 degree valve seat angle. The valve is also made fractionally longer than standard to allow for the larger diameter head thus ensuring the spring retainer is still in the correct place - a design feature sadly lacking on most 1mm oversize valves on the market! Made from high quality steel (1.4718) with excellent tensile strength. This valve allows you to improve the shape of the inside if the standard seat insert to increase gas flow. Price is per valve. Classic Alfa production made in Italy by leading valve manufacturer.
Performance inlet valve to fit 2000 engines. 46mm diameter head - the largest size you can fit with normal spark plugs. 8mm valve stem diameter for improved air flow, 45 degree seat angle for...
Performance inlet valve to fit GTA Twin Plug engines. 45mm diameter head, 8mm diameter valve stem, 45 degree seat angle for improved top end power. Price is per valve. Please note that original GTA...
Performance exhaust valve to fit 2000 engines. 41.2mm diameter head - 1mm larger than standard - and 9mm (standard) valve stem diameter for best low end torque but with 45 degree seat angle for...
Performance inlet valve with 43mm head to fit non-GTA 1600 and 1750 engines. 9mm (standard) valve stem, 45 degree seat angle for improved top end power. Price is per valve. Classic Alfa production...