Brand new VHPD cylinderhead for the Elise.
"These heads are essentially a hybrid between the normal K16 head and the VVC head in that they use the same base casting as the K16, but with the VVC ports and chambers cast in without provision for the VVC gubbins. The VHPD head uses the same sized valves as the VVC head. If complete the VHPD head comes with Piper 872 cams and solid followers together with special valve spring caps with a raised ring to contain the follower shims.These are even more rare than the VVC heads since they are made to special order, but if you do find one then it is the ideal head to use as a basis for your performance engine since there is no VVC paraphernalia to blank off and it will take a normal type inlet cam. The downside is price, I have heard of bare castings changing hands at £1200, this is a ludicrous price since the cost of buying and converting a VVC head is much less and they are essentially the same flow wise and you still need to buy valves, cams, followers, springs, verniers/sprockets, caps and collets. The VHPD head is an off the shelf casting and has no additional hand finishing applied." by Dave Andrews at DVAPower.