The cylinder head is made from a light, robust aluminum alloy with superior cooling efficiency. Camshafts are created of specially Solid steel and they are pushed by a timing belt. The 2JZ-GTE engine is supplied with 4 valves per cylinder: two intake valves and two exhaust valves. Issue as pictured. https://jdmtoyota2jzgtevvtiforsal34737.blogdemls.com/27871608/how-much-you-need-to-expect-you-ll-pay-for-a-good-jdm-toyota-2jz-gte-vvti-for-sale-built-2jz-gte