Let’s Tune This Engine

Well, now you are alert.
You can take a screwdriver sharpened to a point, attach a wire to it connected to ground, and push the point through the plug wire boots at the distributor, grounding out 1 cylinder at a time.

 

Yes, but just a pinhole. You do not want to destroy the integrity of the boot.

 

Maybe 1 lifter is taking a little longer to pump up or leaks down a little more as for what 302 said you can go to an auto parts store and buy a cheap pick set they all have sharp pointed ends and are small Harbor Freight sells them for 1 dollar over here look on their site to get an idea but I see them in most Auto Parts stores

 

I see your problem - or at least the indication to your problem.
Look at your video again. I don't know what side of your engine this is.
One rocker is not getting oil like the other seven are, and you can hear the tick as you pass the camera over that rocker.


And in the SLO Mo rocker video, from what I can see, your pushrods look like they are too long.
It could just be the camera angle, though.

Unfortunately, you are not going to like the solution. I have been through this before.
And it seems that I am the only one in the world that has figured this out - right here on Grumpy's.

 

This could be your problem Dorian: http://garage.grumpysperformance.co...ulic-lifters-mystery-solved.12263/#post-60159
And yes, I know your lifters are hydraulic roller. The insides are still the same.
Because you have a roller camshaft, your lobes M-I-G-H-T be fine.

In my case, there was no oil to the rockers below 1700 rpm. Once you revved the engine above that, oil began to flow. But less than the proper amount.
The cheap offshore crap lifters I used were made wrong. No spoiler here, you will have to read about it. Mike.

 

ya know Dorian, I might pull that push rod and run a pipe cleaner through it, might have a clogged up pushrod!

 

Morley makes good lifters, I use Howards lifters myself!

 

Well, when I had my lifter problem, Brian recommended ISKY.
I took his advice and the ISKY parts do indeed function the way they are supposed to.

 

This is a bit OT, but since we are talking lifters, good hydraulic flat tappet sbc lifters, do they must have a hardened surface? How to recognize a good lifter?

 

Grumpy can field this question.
My 2 cents...….
Offshore crap has infiltrated everything.
I guess you will have to buy from a reputable brand name company and hope they stand behind the product.
That's really hard to do with engine parts, because by the time you figure out something is wrong, the entire engine might be trashed.
And they will only refund the cost of their part, not your entire (now ruined) engine.