The stock stem diameter is 11/32 with a hardened tip and stem. 8 - 2.02 Intake Valves.8 - 1.60 Exhaust Valves. 16 pair Valve locks / keepers. We offer the best prices and best quality cylinder heads on E-bay. Visit our e-bay store for new listings and specials. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Engines & Engine Parts\Valvetrain Components\Valves". The seller is "race114183" and is located in this country: US. This item can be shipped to United States.