Neither of these will cause a tick or knock, con rods yes, lifters yes, wrist pins yes, crank main bearing no, cam bearings no.

Pull the VC's and run it up and find the loose/ticking rocker arm, it will be one messy job as oil will be following out the pushrods when doing this test.

 

At least I know what causes it now. lol

 

I guess I should say crank mains can rattle, but not for long and the main bearings would have to be just whipped. This is usually when a crankshaft breaks in two or three or more pieces.

Op: Put some dino oil in it see if that helps, it has for some. Whats the oil psi gauge reading?

 

All the rockers are torqued to spec and flowing oil fine but there's is still that load tap/knock in gear and at 1200 rpm only it's coming from one of them but I can't tell I believe it's the front ones . I have the expensive all aluminum header gasket .

 

can you post a video, with audio?

 

I will tomorrow the oil pressure is 50 till warm up then 40 at driving and then fluctuates lightly at idle between 28-32 till you hit the gas then back to 40

 

I'm tending to lean towards lifter as well.

It's typical, regardless of oil, that at warm up there is the tick sound that seems to come from front driverside. Upon warm up it will go away. I've also had it not happen at all too.

Your loudER ticking and at reproducible conditions (RPMs) indicates a non-typical tick. Also, while you may be seeing oil come through the pushrods all that indicates is the pushrod apparently is intact. Meaning not crushed at lifter connection to prevent flow. Rockers torqued to spec, but would you still be able to see if a spring has failed?

I wonder about considering to unbolt rockers, check things in loose state, not removed, then retorque as a way to track down.

 

The only time it doesn't tick is at idle or out of gear . I'm having a mechanic come over and take a look I will tell him all you guys have mentioned . And I will get that video

 

Okay this is our hunch . With a stehtescope five guys on the engine beer in every hand we pin pointed it the very first rocker area and with the symptoms it has we think it might be a weak valve spring . Cause the rockers is getting oil just fine the pushrod rolled fine on a plate of glass the lifter was new as of 6 months ago . And with the fact it needs a load that's what is leaning us towards the spring being weak craked or broken .

 

Pull the plug on that cylinder, run it up to top dead center, stuff enough rope into the cylinder to hold the valves in place, then pull the springs, and have a look at 'em. If there is a machine shop near you, they should be able to test the springs. (if there isn't something obviously wrong with one....)