Supertech titanium retainers. 91lbs at 33.60mm. Supertech Valve guides intake - gde-t2jz-i. Supertech Valve guides exhaust - gde-t2jz-e. Inconel exhaust valves STD size - TEVI. Supertech black nitrided valves STD size. You need to clean the head before installation. The item "2JZ Ported Cylinder Head Supertech 2jz-ge vvt-i Toyota Supra Lexus is300 gs300" is in sale since Saturday, October 3, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "intelman4o" and is located in Sofia, Sofia . This item can be shipped worldwide.