Yesterday as i was leaving work i turned the cobra on and it began making a tick noise. I raised the hood to hear if it was the exhaust(leak) or engine head tick. It was the engine and it was coming from the driver side. My engine was built about 20k-30k miles ago with diamond pistons, cylinders bored and heads resurfaced. After about a minute the noise completely went away. Same thing happened this morning. I didnt let it bother me since i just thought the car needed to warm up and allow for oil to flow through that area. Anyone have any idea? Should i be concerned? Thanks.