Can anyone identify these pistons?

[holiks03cobra]

I just bought a long block and the rotating assembly was said to be stock but after removing the oil pan it’s clearly not stock pistons. All the research I’ve done I’m leaning towards they are cast or hypereutectic and don’t want to melt or blow a ring land when I throw boost at them. Has stock crank and rods and arp hardware.

 

[holiks03cobra]

This is the car it came out of. San Antonio, TX area. If you were or know the owner and can give me some info on the motor I’d definitely appreciate it!

 

[01yellercobra]

Sometimes there's a part number inside the piston. Otherwise get a bore scope and check out the crowns.

 

[holiks03cobra]

Sometimes there's a part number inside the piston. Otherwise get a bore scope and check out the crowns.

All I can see on the inside of the skirt is either INDIA or INOIA on one side and either OT or DT on the other.

 

[Blkkbgt]

The worst part is that piston looks cast. OE pistons were forged and that diamond patter is typical of cast parts.

 

[598]

IS that a crack in the block? Looks more than casting

 

[holiks03cobra]

The worst part is that piston looks cast. OE pistons were forged and that diamond patter is typical of cast parts.

Yeah I’ve been doing a lot of research and not one forged piston has this marks. Blows my mind that someone would put cast pistons in a FI motor.

 

[holiks03cobra]

IS that a crack in the block? Looks more than casting

You’re the 2nd person to ask that and I didn’t think it was but now I’m wondering

 

[01yellercobra]

I didn't see the crack on my phone, but I see it on my monitor. At this point I would just bite the bullet and take the engine apart. At the very least you'll easily be able to point out you didn't get what you paid for and try to get your money back.

 

[holiks03cobra]

I didn't see the crack on my phone, but I see it on my monitor. At this point I would just bite the bullet and take the engine apart. At the very least you'll easily be able to point out you didn't get what you paid for and try to get your money back.

This is not how things were supposed to go but that’s my luck. Just wanted a motor to drop in while I built my teksid block. Trying to work out a deal with them before doing anything else.

 

[Rambro]

I didn't see the crack on my phone, but I see it on my monitor. At this point I would just bite the bullet and take the engine apart. At the very least you'll easily be able to point out you didn't get what you paid for and try to get your money back.

They told him that they were forged pistons. Those clearly are cast pistons. He should be refunded in full, but you know how these things go.

 

[Rambro]

You really have to learn how to build one of these engines if you’re going to lean on it. There’s not one engine builder out there that I would feel comfortable giving my money to. And I’ve heard of horror stories about all of them basically, even the ones that are supposed to be the “best”.

 

[holiks03cobra]

He says that’s not a crack, the motor would not have ran if it was. It’s a casting line and he stands by his statement that the pistons are Mahle powerpak. Is not trying to work with me or give me any type of refund.

 

[Rambro]

Looks like a cast piston to me.

 

[SHIFTYBUSINESS]

Cast piston, and it can run with a crack in the block. The crack would get worse over time until it would "let go". I used to balance rotating assemblies for a shop and never had forged pistons with what I call casting marks, always smooth like the bottom one in Rambro's post.

 

[01yellercobra]

"Ran when parked" is probably one of the biggest red flags out there.

Is it me or does the amount of scamming seem to be going up lately?

 

[Rambro]

"Ran when parked" is probably one of the biggest red flags out there.

Is it me or does the amount of scamming seem to be going up lately?

The wolves are always at your door. Like I said in a post above, there’s not one engine builder out there that I would feel comfortable rebuilding my engine. None. And you have to be extremely careful buying anything used. People are just waiting to steal your hard earned money.

 

[DSG2003Mach1]

"Ran when parked" is probably one of the biggest red flags out there.

Is it me or does the amount of scamming seem to be going up lately?

I think shit is worse than it seems and people are getting desperate

 

[03cobra#694]

OK, I just zoomed in on that block, that' s a crack all day.

 

[DSG2003Mach1]

OK, I just zoomed in on that block, that' s a crack all day.

agreed and hard to tell but looks like the left side of the crack the block might be touching the piston skirt even