Since 1972 Neville has specialized in cylinder heads and performance engine building under the names “Head Craft”, and “Pro Heads”, both very successful cylinder head porting and engine building shops with a reputation for quality work, and a long list of loyal regular customers. In 2009 Neville and Scott purchased the company CHI and the 3V brand. Building on a great concept of cylinder head design and manufacture, they have built CHI up to a position of supplying specialized heads and manifolds to almost every form of professional V8 racing. This includes Circuit racing, Drag racing, Speedway and Burnout cars. Neville and Scott both bring extensive motor racing experience having campaigned together since Scott was young. Starting in Go Carts, then Formula Ford, and later Konica series V8 supercar and Australian Nascar series.