Standard evo 6 piston numbers

[Reece.]

I'm led to believe my car is forged and only way I could find out is either dropping the sump or using a bore scope with a plug out.

Luckily enough a work mate bought a bore scope last week and managed to take a look yesterday at the piston crown with a plug out. It has a light on it so made it a little easier but could only get a few numbers/letters and I know there was another row of numbers/letters.

Only thing I could see with it was 8852k, again there might have been a few numbers after/before and there was another row above it which I couldn't see.

I've had a quick search to see if I could find standard evo 6 piston numbers or even a picture to see if they have this number to no avail. The guy said that it had wiesco pistons in the advert if those part numbers match anything from wiesco?

 

[RsvRob]

You may never know without the full numbers. Giving/reading only part of the numbers could meen anything.
Serial number?
Batch number?
Etc ...

Was there no receipt with the purchase for parts and/or fitting?

 

[Reece.]

Ill have to take another look and try and get the full number, if those numbers aren't on a standard piston then I know that something has been chaned in there

 

[B6lee]

This is a evo 5 piston. I know they are very similar on top as a evo 7 piston so evo 6 the same

 

[B6lee]

Here we go, wisco 85.5mm piston

 

[Reece.]

Very big help! Thank you, will have a better look and see what else I can find but by the look of it, it isn't standard

 

[B6lee]

Very big help! Thank you, will have a better look and see what else I can find but by the look of it, it isn't standard

No probs. and yea, your right

 

[Reece.]

You may never know without the full numbers. Giving/reading only part of the numbers could meen anything.
Serial number?
Batch number?
Etc ...

Was there no receipt with the purchase for parts and/or fitting?

It was imported in 2002 and the pistons and rods are the only thing I can't find history for, it has ARP head stud kit already and is on 59k miles and has had a new cambelt and balance belt so I know the heads been off at some point just need to double make sure the other main 2 bits have been done.