The cylinder head is constructed from light-weight Aluminum content mounted on a single-layered metallic gasket and employs plastic area tightening bolts. The 2JZ-GTE has twin overhead camshafts made out of specifically Forged-steel and heat-handled bearing caps; camshafts are driven by using a timing belt. is part of Toyota’s JZ engine https://trevortpdao.thekatyblog.com/27488034/indicators-on-jdm-toyota-2jz-gte-vvti-for-sale-built-2jz-gte-you-should-know