[KaBoom1701]

[Ron_Robinson1]

On a side note, I never have heard of this being a problem with LT4. I have been also watching the C7 Z06 forum and have never have heard of this issue.

[Sharp Shifter]

Not at liberty to say lol i don't want it to become a thread for mocking or anything like that. Was just curious if this was something anyone else had heard about. Because i dont want to void warranty if this is a issue or if someone just messed up somehow.

[Sharp Shifter]

Originally Posted by Ron_Robinson1

On a side note, I never have heard of this being a problem with LT4. I have been also watching the C7 Z06 forum and have never have heard of this issue.

Ok awesome, thats the feedback i was looking for. I appreciate it man

[Mr. Wyndham]

Originally Posted by datboi448

not at a dealer for warranty work? speaks for itself it seems.

I tend to think the same....until I hear otherwise.

[mlee]

This is most likely the one LT4 Z that blew up here a couple months ago.

It was modded to the hilt and I believe he's going back twin turbo now.

[crunch527]

I figure anyone who has the money to buy a new ZL1, mod it, and not give a shit about the warranty, can afford to fix it when/if it blows up. So in total, its really a non-issue.

Besides, a replacement (crate version) of the LT4 can be had for about $16K...maybe have a shop strengthen the bottom end and let her rip!

[Ipockalypse]

Originally Posted by Boilermaker128

Oh wow a whole 3,000miles...

Not that it's necessarily a lot in the big scheme of things but considering the ZL1 LT4 hasn't been out long...I'd say that's probably a descent amount of mileage so far.

[7WSM]

In stock, did you mean Houston Stock? Or Stock from the factory? Either way, something just seems fishy around here. I have seen plenty of modded LT4s in for repair and I have never heard of anything like this before. Most of us are going to raise the BS flag without knowing any specifics.

[Sharp Shifter]

ya but the tubes are located at the bottom if im not mistaken, and the biggest build zl1 right now are cam only cars. Now you do have to pull the oil pan off to get the timing cover off and such but wouldn't imagine hitting those tubes but maybe that's what happened. Because a tune, meth ect is not going to move those if the bottom end hasn't been messed with.

but again, I've personally assembled LS motors several times and have never messed with an LT so I do not have a clue because I've been out of the game for a few years. I know there are people way more fresh on it than I am besides obviously the forum sponsors who build these cars weekly lol

just thought this was a good thread to start since in some way or another it did happen and wanted to see if anyone else had heard of this.

[aka Reckless]

That looks like a cast piston? Aren't the LT4 pistons forged?

[Ron_Robinson1]

Originally Posted by Sharp Shifter

ya but the tubes are located at the bottom if im not mistaken, and the biggest build zl1 right now are cam only cars. Now you do have to pull the oil pan off to get the timing cover off and such but wouldn't imagine hitting those tubes but maybe that's what happened. Because a tune, meth ect is not going to move those if the bottom end hasn't been messed with.

but again, I've personally assembled LS motors several times and have never messed with an LT so I do not have a clue because I've been out of the game for a few years. I know there are people way more fresh on it than I am besides obviously the forum sponsors who build these cars weekly lol

just thought this was a good thread to start since in some way or another it did happen and wanted to see if anyone else had heard of this.

Your dead on.. I think the biggest ZL1 built right now was all bolt ons, Meth, e85, and Cam. So no reason at all should the engine be pulled for that, let alone have anything to do with the oil squirters.

So does this worry me, absolutely because I will be modding my car like the mods listed above. But again I have never seen a problem like this before with the LT4 (well at least not in the Z06s), so was it just a fluke (expensive fluke) or will we be seeing more of these issues.

[Ron_Robinson1]

Originally Posted by aka Reckless

That looks like a cast piston? Aren't the LT4 pistons forged?

Pulled from the GM site: Forged aluminum pistons with flat top crown that supports the 10.1 compression ratio and internal ribs for strength (similar to the LS9 piston design). A premium ring pack includes a PVD-coated top ring, chrome-coated second compression ring and a nitrided oil control ring – all for exceptional wear resistance and durability under high cylinder pressure. The bottom ring land also features eight oil drains

[RLHMARINES]

Originally Posted by Sharp Shifter

A shop in houston had a stock car come in with some issues (think it was a zl1) and took apart the motor and found a huge chunk of the skirt of the piston broke off and 2 others cracked. Diagnoses, three of the oil squirt tubes were lower than the others and were nipping the pistons...... ill add photos in a second, but apparently this is not the first case of the lt4s having this issue..... anyone else hear about this??

Stock...I don't think that was a stock car otherwise it would've gone to a dealership for service/repair....the shop is dealing in alternative facts here