Cylinder head aluminium v Iron

[Malcolm Parker]

I don't know about the technicalities of the Dave Dye Ricardo head, but my experience is that they are equally suited to engines of all states of tune.  My RL saloon has one on a mildly tuned engine and runs more smoothly than it has with any other head, as well as having useful extra power and flexibility.   They are the preferred choice of most who compete in Austin 7's.  Unless you are VERY proficient at modifying standard heads it would seem illogical to go any further than the Ricardo head.