Purchased off eBay, this is where the madess began...

This cylinder head is from the 2.4 litre Fiat Stilo. Compared to the 2.0 litre cylinder head, it features valves with 3mm larger head diameters, wasted valve stems and a smaller combustion chamber volume. The latter will help with increasing the compression ratio to the target 12.5:1 and the former will aid getting more of that lovely air/fuel mix into the cylinders.

The head has since had porting/reshaping work, machining for cam lobe clearance, 3-angle cuts to the valve seats, custom colsibro valve guides and custom cam cap studs fitted.