Lq9 carnage pictures.

[whitetrash]

much like mod motors some ls motor have heat issues with the rear cylinders. i bet that caused it

[davbrucas]

Looking at the condition of the motor (dirt, leaves, etc) I would guess that poor maintenance contributed to the engine's demise.

[JC316]

Stock as can be. Weird it melted both cylinders.

I changed the engine in an 01 frontier that had 4 melted pistons. Basically the same story as you, except it didn't break the rods. Didn't spin any bearings, just welded the piston to the cylinder wall.

[91CoupeMike]

I changed the engine in an 01 frontier that had 4 melted pistons. Basically the same story as you, except it didn't break the rods. Didn't spin any bearings, just welded the piston to the cylinder wall.

Shitty gas? I wouldn't think a stock engine would just give out but who knows it had a hard life.

[JC316]

Shitty gas? I wouldn't think a stock engine would just give out but who knows it had a hard life.

In my case, I think it was overheating. The truck wound up needing a radiator, but they usually quit running long before the pistons melt.

[Back N Black]

Those motors have a huge issue with rod bearings giving up and shit goes haywire...

[Z06killinsbf]

Leaned it out maybe?

[crapstang]

Throw it in my pile of blown up car parts to be hauled off to the scrapper. I've got CV axles, transmission pieces, rims, ls2 pieces, mini cooper parts, etc. Might as well get some LSXXX in there

[dangerous_sep]

In my case, I think it was overheating. The truck wound up needing a radiator, but they usually quit running long before the pistons melt.

Best bet right here I've seen that on mostly every Chevy motor that weve had to replace to severe overheating

[91CoupeMike]

It was full of water/pink antifreeze. It was sure to make a big ass mess.

[Magnimike1]

if he was drunk and racing could it have been staying on the factory speed limiter too long?

[Cmarsh]

Only time ive seen a n/a ls do that...guy was making a topspeed run...and it went lean. Bad fuel pump, clogged filter, low on gas...any number of reasons. If battery died..alt might have taken a shit, then voltage drops...bam.

[BP]

It looks like some pretty severe detonation to me, which eventually completely destroyed a couple of pistons. It can happen with overheat and continued high RPM use.

[YALE]

if he was drunk and racing could it have been staying on the factory speed limiter too long?

Doesn't that just pull spark?

[91CoupeMike]

Only time ive seen a n/a ls do that...guy was making a topspeed run...and it went lean. Bad fuel pump, clogged filter, low on gas...any number of reasons. If battery died..alt might have taken a shit, then voltage drops...bam.

It does have a new alternator on it.