"Phantom" Cylinder Heads
Either 3.9 or 4.6 configuration.
Phantom cylinder heads have substantially increased port sizes but standard size valves. The exact specification for these heads can be found in the Head Porting section of this website, but specifications include:
- Standard valves
- Bulleted guides
- Polished & ported
- Double valve springs
- New caps & collets
- Matched combustion chambers
- Head faces skimmed*
£900.00
Exchange item required 
Outright surcharge: £150.00