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I saw the bores when the lifters were done. They looked fine.

Its the loudest at 2500rpm in park. Cant hear it over about 3000, but its load dependant. If you roll while holding a gear the noise stops, soon as you touch the throttle, its noisy again. Lifters would always be noisy no matter the load, and my noise is not tappy, its deeper. Takes a good...

My noise is all over the place. Some days good, some days bad. Theres no pattern. It can be a really cold day and its ok, then a warmer day and its bad. Most of the time its bad when the weather is cold. Like i said, it didnt do it last summer or the summer before. Only as soon as it starts...

No, i gave the car to a shop to fit them.

Anyone recommend a shop in Sydney to rebuild mine? Drive in drive out.

Im going to take my car to holden and ask if they want to buy it. When they say no because of the knocking, i'll show them that. My motor sounds fkd. Theres no way anyone will buy it. Even if i warmed it up before they bought it, they'll be knocking on my door the next morning. This aint no SS...

Heres an in-car video i just made. Stone cold.

Like Kakodaemon said, i bought this car when i heard Holden was going under as an investment. Ive made a pretty penny out of it thats for sure, but i cant even sell it making this noise. So now im up for probably $10k to rebuild it just to shut it up. I know slap doesnt hurt, but tell that to a...

Yes, you cant pinpoint the noise. Its the same everywhere you listen. Hard to pinpoint acoustics with aluminium.

Heres some notes ive been taking lately. I just roughly write them down before i forget. " -Knocks at idle on cold start -Different everyday, sometimes good, sometimes bad -Quiet in summer, bad in winter -Knock stops when, holding a gear and rolling -Takes about 10mins to stop knocking while...

Listening with headphones - Its the same knock as mine. Just yours is worse (Sorry). Have you noticed its worse on colder days? I dont even notice mine last summer. Last winter it was bad. Had the lifters done this summer, got the car back and it was fine. Soon as it started getting cold, the...

Love to hear them to compare with mine

Do you still have the videos available?

The speed of the knock sounds like mine, yours might be a bit slower as the motor warms and the revs drop, but your knock sounds a lot tappier than mine. Mine is a more deep tone.

Yep, which is what ive always leant towards being the problem.

New finding: Makes the sound only at idle and under load. If i hold it in a gear and roll (No throttle), the noise stops. Weird... Again, after fully warmed up, no noise. But fully warmed up. About 10mins of driving.

I havent, but the noise hasnt changed from the first set of lifters, so i havent bothered.

Ive done the trunion upgrade. You can see the bronze bushes in the photo. There is preload on each, because theres no up and down play.

Checked every rocker at base circle. No up and down play on any of them.

I had the car tuned back in 2018. But the noise didnt start until about a year and a half later.

Yeah most of the noise goes away pretty quickly after say 1min, but its still there for about 5mins, then i cant notice it. Its all about temperature of the weather. Wont do it in summer. I keep leaning towards piston slap, but the speed of the noise is about valvetrain speed. Its just too deep...

I run Penrite Ten Tenths 10/40

Oil pressure is normal. Around 36PSI at idle and about 50PSI in the higher revs

Ok, heres a video i took this morning. Note that the camera makes the noise a lot louder than it actually is, but noise is the vid sounds exactly as real life.

Yep, im still leaning towards top end noise. I dont know what else to replace? Maybe i should check the lifter preload and check that one of the pushrods isnt bent or something. Its definitely only 1 lifter/piston. You can hear the frequency of the tap. But it just doesnt sound life valve train...

Its got a fresh top end. New rocker solid bronze bushes, LS7 lifters,

You can just hear it after a few mins. But the worst is on startup for the first 30secs. It wont completely go till its fully warmed up.

Doesnt matter which oil. Tried thicker, thinner, you name it. Currently running Penrite ten tenths 10w/40. Only because im starting to track day the car. And yes, it was slapping before any track days lol.

I did. Cost me $2500 to change the lifters lol. And it wasnt the lifters.

Welp... The noise is back... Seems to be worse during the colder months of the year. When i had the lifters done, it was summer. Now thats its cooling down, the noise is back. I noticed the same thing last winter. This morning i started it and the wife came running out aksing WTF was wrong with...

Did the lot. LS7 lifters and all.

Hate people who dont reply after finding the problem. In case anyone else experiences this sound: It was 3 inner race rocker bearings. 70,000kms and 3 were buggered causing play. Changed them with these. https://www.lsxperformanceparts.com.au/smith-bros-rocker-trunnion-bearing-upgrade/

So what was your noise? Lifters or slap? Yours sounds like lifters to me. More tappy than my noise.

Yeah the knock is pretty loud at times. Didnt used to do it. Its definitely in the motor.

Its very strange. Some days its ok, some days its worse. Theres no pattern.

Just strange how its only just started. Its done 70,000kms. Thinking about doing the lifters and replacing the rockers with solid bearings anyway. Probably due soon anyway. Ive bought the kit with Ls7 lifters and rocker trunion upgrade on a whim from Lsx Performance but im not sure if i can be...

Yes, it does sound a bit bottom endish to me. Leaning towards slap.

Hey Guys, Have a listen to this and let me know what you reckon. Does it on dead cold startup. Lasts about 1 min. The Mic on the camera makes it a lot louder than it actually is.

Hey mate! Yep, allgood. Im pretty much out of the mod scene. Got a VF Senator with just exhaust intake and tune. Its enough for me lol. I'll never sell the VS though.

Never got around to it. TBH, if i did, it would leave the driveline at the start line lol. It ended up making 270rwkw at only 13psi. The motor will take a lot more but the rest of it wont.