is this piston toast? Clean up edges with dremel and run it or replace them all?

 

I don't think I'd run that if I didn't absolutely have to.

More important though, is figuring out why it's like that, so you don't ruin the next set the same way.

 

Burnt toast. Not something to run

 

Damn I was afraid that is what I would hear. I have had zero budget for this.project a new set of pistons is not on the list for sure. My own damn fault tho. And yes I know what happened that is beside the point at this point but it wont happen again. Now I gotta collect cans for pistons yay. There is a factory dimple to show this way front what is the difference or risk here? Sharp edges creat hot spots or started a crack I cant see?

 

Do they all look like this? You can buy single used rod/pistons on eBay if you only need some. Cheapest way out of this.

 

Here you go.

https://ls1tech.com/forums/market/1983709

 

JB Weld and send it.

 

Guess most gonna say head is toast too right?

 

 

lol. Right after you.

 

That head can be EASILY repaired.

 

how would you go about it? Weld fill and get it decked?

 

That piston probably has a pinched ring land due to impact being so close to the edge. The head could be tigged up and smoothed avoiding any head gasket sealing area.

 

Essentially, yes.

 

What happened? Foreign matter, detonation, or???

 

Looks to me like a 5.3 that Skillet "slapped" a turbo on and didn't tune.

Not worth "fixing". Go to the junkyard and get another that isn't already smoked.

If YOU'RE Skillet with the turbo, get it tuned, before destroying another.

​​​​​​​Sounds like you'll be riding the bus for a bit.

 

Foreign material i.e. weld slag broke loose and made it's way in via inverted header. Totaly my fault wish I could blame some cheap China product but I can't this was all me.

 

Bad guess on my part. Sorry about that.

 

not so bad as it turns out. It's all good I can own my mistakes. Maybe someone will learn something and save themselves from it somehow. Taking the oppertunity to tap oil pan for a drain line from turbo and probably going to rework my wastegate splitter/bank merge pipe and down pipe while I am getting parts/cash together to fix it. Sounds like I should try and fix my AC welder and get a bottle filled too. Say I didnt do anything besides flatten the high spots and make sure that top ring isnt pinched and put it back together and run it what kind of odds and milage would you give me before another failure and what do you see that failure being? I would have money on 5:1 piston crack fail in less than 3000 miles at conservative 7psi....

 

Most likely fail I see is all those dings close to the ring lands, crimping the top ring, such that it can't spin and therefore will EAT the block bore. No big deal. So yeah, that'd be the main concern, other than some of it getting caught in the crack there and digging a vertical groove in the bore.

I doubt 7 psi will change that except to speed up the process.

The head, probably won't too much matter, if you just grind all the divots kinda smoove; doesn't look like it's hurt any worse than that.