The cylinder head is fabricated from a light, powerful aluminum alloy with superior cooling effectiveness. Camshafts are created of specially cast steel and they are pushed by a timing belt. The 2JZ-GTE motor is provided with four valves for every cylinder: two intake valves and two exhaust valves. Contacted seller https://jdm-toyota-2jz-gte-vvti-f12494.post-blogs.com/49577464/jdm-toyota-2jz-gte-vvti-for-sale-built-2jz-gte-for-dummies