Buy all the parts you need below
Feeler gauges: https://rover.ebay.com/rover/1/71153...
Valve Cover Gasket Kit: https://rover.ebay.com/rover/1/71153...
Craftsman 3/8 Torque Wrench: https://rover.ebay.com/rover/1/71153...
Buy a Complete Tool Set: https://rover.ebay.com/rover/1/71153...
Buy Gasket Maker RTV Silicone: https://rover.ebay.com/rover/1/71153...