Stage IV Mark 2 Cylinder Heads

In order to promote even greater air flow into the cyclinder we produce these Ultra Big Valve cylinder heads. Porting and port design is very similar to the Stage IV Mark 1 heads but with the addition of Phosphor Bronze guides and larger valve seats to allow us to fit even larger valves than the 1st generation Stage IV cylinder heads. These are very well suited to very high performance engines including 5.3 and 5.5 litre race engines.
The exact specification for these heads can be found in the Head Porting section of this website.
Price is for 1 pair.

Price: £1495.00 pair

Exchange item required info
Outright surcharge: £150.00

Stage IV cylinder heads