Can/should you re-use engine components?

3k and it's not reused? C'mon man... should last 125K.

I have a used timing set that I'm using in my race motor. No idea what it came from. Doesnt matter... it's in good shape and I will use it.

Pretty obvious none here worked at a dealer... we used to have to reuse head gaskets on Chevy and Mopar warranty work. Clean them and use Permatex #1... never an issue. That was in 1967-1972.