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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 improved top end power. Requires 8mm valve guides & oil seals (part number EN595 + EN602), spring retainers (EN600) and cotters (EN591). Price is per valve. Classic Alfa production made in UK by leading valve manufacturer.
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...
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...
Valve guide to fit FIA specification GTA inlet valves with 8mm stem diameter. Please note that original GTA valves were 8.5mm stem, we use an 8mm valve as it will improve intake flow.