When you say you "lost" one, is that because you can only find one? or none? Typically speaking, a stock engine only has the one lash cap. Its normally on the exhaust valve only. Didn't know if you were thinking it had two or not.Anyone know where I can buy a lash cap? I think that's what it's called. It's the small round piece that fits over the valve stem on top of the spring retainer. I somehow lost 1. Thanks guys.