Whats that noise coming from my 318?

How long did it set? Sounds like a 318 I put in an 84 ram I used to own. Sounded good when pulled, sat for 6 mo. Before installing in the ram. Ticked like crazy. Added qt. Of marvel to crankcase let idle for an hr and tick went away. Changed oil and ran it for 3 yrs w no problems. Not that uncommon for a Mopar lifter to stick. I'd start w the easy stuff