Ticking noise

Hello everyone. I have a 93 k1500 with a 350. The other day I started hearing a ticking noise and oil pressure was reading lower than normal. My first thought was low oil, so I checked and it's at correct level. Listening more for where the noise was coming from I could hear in the front of the engine. As it sat idling it suddenly stalled and now won't crank over. The check engine light didn't go on before stalling. After looking in my repair manual, I'm thinking its maybe the timing chain. What do you guys think?