Ok I heard from the shop that build my motor they said my tapping is from my #1 piston but mine is alittle different from Urs mine is burning oil and the tapping stop after warming up and ur doesnt so I think ur is a different tapping I hope so now I have to pull the motor again so theY can fix it but it will not cost me anything Cause of the warranty thank god

Mine was burning some oil. It was blowing it out the exhaust. I'm going to look through everything since I have the engine out of the car.

Rod Knock?

It's not rod knock it's piston slap on a new build motor

Does anyone know how to tell the difference between a piston slap and a rod knock?

I think if u have the car running and pull off the spark plugs wire one by one if the sound changes that's piston slap when mine had rod knock before the rebuild it only knocked between 2500-3000 RPMs

The thing is which every it is, it still is a pain to take care of.