The cylinder head is fabricated from a light-weight, potent aluminum alloy with very good cooling efficiency. Camshafts are made of specifically cast steel and therefore are driven by a timing belt. The 2JZ-GTE engine is supplied with four valves for every cylinder: two intake valves and two exhaust valves. JDMBUYSELL https://jdm-toyota-2jz-gte-vvti-f24069.blog-a-story.com/8006639/jdm-toyota-2jz-gte-vvti-for-sale-built-2jz-gte-an-overview