The cylinder head is product of a light-weight, solid aluminum alloy with good cooling performance. Camshafts are made of specially Solid steel and so are driven by a timing belt. The 2JZ-GTE engine is provided with four valves per cylinder: two intake valves and two exhaust valves. Contacted seller by https://jdm-toyota-2jz-gte-vvti-f94937.ourcodeblog.com/28219855/jdm-toyota-2jz-gte-vvti-for-sale-built-2jz-gte-no-further-a-mystery