Stock camshaft options

[JPVortex]

Id drop a quart of tranny fluid in the engine right before an oil change and let it run in the driveway for 20-30mins and then drain. Put new oil in and see if noise goes away. Cant decide if this sounds like a lifter that is not pumping all the way up or piston slap. The clank toward the end of the sound sure sounds like piston slap. Does noise get worse or more silenced once engine has been driven and heat cycled? Did you inspect exhaust manifold for broken bolts?

So from reading online the ATF myth has been pretty much busted. It is said that any modern motor oil has more additives than ATF does, so I don’t think that’d do much.

Noise stays consistent no matter what temperature. Never really gets louder or quieter, what it’s like in the video is what it’s like all the time. From the research I’ve done it seems like piston slap usually happens on cold starts and goes away fairly quickly unlike this one. I can also hear the tick is coming right from the valve train when the valve cover was off.

0% chance it’s an exhaust leak. Manifolds and gaskets are new with all new hardware and I leak checked them with air and soapy water, no leaks at all.