What's this ticking noise?

[lee majors]

Originally Posted by navajowalks

Heater bolts all tight? Sometimes exhaust leaks could kinda sound like a tick... Just brain storming cheap easy things to check and rule out... But I can't hear it so shooting in the dark..

good call. seen a bunch of people put headers on and not realize they had to tighten them up after a few heat cycles
edit: if its not that i'd guess you need a valve adjustment.