GTA RACE & PERFORMANCE PARTS : CYLINDER HEAD

Valve guide to fit FIA specification GTA exhaust valves with 8mm stem diameter. Please note that original GTA valves were 8.5mm stem, we use an 8mm valve as it will improve exhaust gas flow.

Valve guide to fit performance valves with 9/32" diameter valve stems. Can be used on both inlet and exhaust valves.

Special valve retaining collet to fit 9/32" diameter valve stems as used on our 1300/1500 race valves. Two required per valve.

Bottom valve spring plate to match with the 9/32" race valve springs for 1300 / 1500 engines available under item code EN605. Sold individually, 8 required per cylinder head.

13mm lift, 307 degrees duration. Hollow billet lighweight camshaft designed by CatCams in Holland, suitable for 2 litre Nord engines wanting lots of power. Please note that with these performance camshafts it will be necessary to make a simple...

12mm lift, 290 degrees duration. Hollow billet lighweight camshaft, a good alternative to EN524 if you want better low end power with just a small amount less at the very top. Suitable for 2 litre Nord engines wanting lots of power but with clean low end...

10.8mm lift hollow billet lightweight camshaft with 285 degrees duration at 0.30mm tappet clearance (254 deg. at 1mm lift). Designed by leading UK Alfa competition engine builder Jim Evans, whose experience and knowledge is second to none, this is an...

12mm lift hollow billet lightweight full race camshaft with 296 degrees duration at 0.30mm tappet clearance (264 degrees at 1mm lift). Designed by leading UK Alfa competition engine builder Jim Evans, whose experience and knowledge is second to none,...

11.6mm lift hollow billet lightweight camshaft with 284 degrees duration at 0.30mm tappet clearance (253 deg. at 1mm lift). Designed by leading UK Alfa competition engine builder Jim Evans, whose experience and knowledge is second to none, this is an...

11.2mm lift hollow billet lightweight camshaft with 284 degrees duration at 0.30mm tappet clearance (253 deg. at 1mm lift). Designed by leading UK Alfa competition engine builder Jim Evans, whose experience and knowledge is second to none, this is an...

Oversize inlet valve guide to fit all 4 cylinder 101, 105, 116 and 75 engines - plus Montreal - with 9mm valve stems. Not TS. Sold individually. Note, these can also be used as an exhaust valve guide if you wish to fit valve stem seals on the...

Exhaust valve guide to suit all 4 cylinder 101, 105, 116 and 75 engines, plus Montreal - with 9mm valve stems. Not TS. Sold individually.

Inlet valve guide to fit all 4 cylinder 101, 105, 116 and 75 engines - plus Montreal - with 9mm valve stems. Not TS. Sold individually. Note, these can also be used as an exhaust valve guide if you wish to fit valve stem seals on the exhaust valves...

Classic Alfa production cam follower to suit all 4 cylinder 101, 105, 116, Montreal and 75 engines including TS and V6 (on the inlet side only). Made in the UK with the correct profile on the lip of the follower. Also suitable for race engines. **...

High quality performance valve springs from top UK manufacturer. Suitable for all 4 cylinder 101, 105, 116 and 75 engines including TS.

Exhaust valve to fit Alfa 75 style Twin Spark engines. Price is per valve.

Colombo & Bariani have been manufacturing both original equipment and performance camshafts for cars and motorcycles over 60 years.  These 12mm lift camshafts are for performance 2000 engines and have 292 degrees duration. Price is per pair. See the 10...

Colombo & Bariani have been manufacturing both original equipment and performance camshafts for cars and motorcycles over 60 years. These camshafts are excellent for fast road 1300/1600 engines, providing a smooth stable idle, good torque at...

Crankshaft nut to suit 2.0l Twin Spark engines

Top timing chain to suit 2.0l Twin Spark engines

Inlet valve to fit Alfa 75 style Twin Spark engines. Price is per valve.

Exhaust valve guide to fit Alfa 75 style Twin Spark engines. Price is per valve guide.

Inlet valve guide to fit Alfa 75 style Twin Spark engines. Price is per valve guide.

Valve stem seal to suit the 8mm diameter valve stems used in 75 twinspark and 750-series engines. Price is per seal.