GTA RACE & PERFORMANCE PARTS : CYLINDER HEAD

Athesil RTV silicone sealant. A premium sealant/ gasket maker developed by Athena for professional use in engine maintainace and repair. The RTV (room temperature vulcanizing) silicone seals plastic metal componants, crankcases, manifolds ...

Twin-plug cylinder head to suit both 1300 1600 GTAs. Requires valve guides, seats and porting to your specification. This Italian casting has been sold for many years and is the most race proven GTA head currently in production. Price £5800...

Standard timing chains can stretch and wear under high load, with a consequent affect on engine performance. German made Iwis competition timing chains are specially made with high wear resistant materials and coatings for longer life and improved...

Standard timing chains can stretch and wear under high load, with a consequent affect on engine performance. German made Iwis competition timing chains are specially made with high wear resistant materials and coatings for longer life and improved...

Standard timing chains can stretch and wear under high load, with a consequent affect on engine performance. German made Iwis competition timing chains are specially made with high wear resistant materials and coatings for longer life and improved...

Standard timing chains can stretch and wear under high load, with a consequent affect on engine performance. German made Iwis competition timing chains are specially made with high wear resistant materials and coatings for longer life and improved...

GTA style oil filler cap with inbuilt breather outlet suitable for venting to an oil catch tank.

Clear breather pipe hose to fit between the cam cover breather pipe and catch tank available under code EN575. Hose is clear to enable you to easily check if oil is being discharged into the catch tank. Sold per metre length.

Fabricated MOCAL alloy 1 litre oil catch tank. Includes oil level site gauge. Also note that the inlet diameter matches the outlet diameter of the twin-cam cam cover breather. See also EN576 for suitable clear breather hose. Main Body...

Early style cam cover (dished at rear - no front bolt holes) to suit GTA engines. Beautifully cast in magnesium and very lightweight.

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...

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...

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 improved top end power. Price is per valve. Classic Alfa...

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 valves were 8.5mm stem, we use an 8mm valve as it will...

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 made in UK by leading valve manufacturer. Note that this...

Performance exhaust valve to fit GTA Twin Plug engines. 41mm diameter head, 8mm diameter stem, 45 degree seat angle for improved top end power. Price is per valve. Please note that original GTA valves were 8.5mm stem, we use an 8mm valve as it will...

Performance exhaust valve with 38mm diameter head to fit 1600 & 1750 engines. 9mm (standard) valve stem, 45 degree seat angle for improved top end power. Price is per valve. Classic Alfa production made in UK by leading valve manufacturer. Note this...

Special valve retaining collet to fit 8mm diameter valve stems as used on many performance valves. Two required per valve.

Jim Evans valve spring kit - designed to complement our range of performance / race camshafts and valve gear. Under extreme use some competition valve springs can bind their inner and outer springs - these will not. Recommended installed valve spring...

Jim Evans valve spring kit - for use with our 1300 / 1500 valves with a 9/32" stem. Under extreme use some competition valve springs can bind their inner and outer springs - these will not.

Set of 4 high quality (Payen brand or similar) valve guide oil seals to fit 8 mm diameter valve stems on 75 twinspark and 750-series engines.

Valve spring retainer to fit performance valves with 8mm stem diameters. Sold individually.

Inlet valve guide to match the performance valve with 8mm diameter valve stem available under item code EN589.

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.