Need help to determine pistons that are installed

[boost]

Yes dsm pistons all have the same writing on top. From the last picture you have it looks like theyre 95+. The 90-94 pistons are 7.8 to 1 compression ratio. You said they were almost flat top and 90-94 have quite a deep dish that i dont think you could miss. I have 95s in my 92 you will have about 190+psi that is normal with this modification. Just because you have high compression doesnt mean you have these pistons. Could be carbon buildup.

 

[boost]

Yes dsm pistons all have the same writing on top. From the last picture you have it looks like theyre 95+. The 90-94 pistons are 7.8 to 1 compression ratio. You said they were almost flat top and 90-94 have quite a deep dish that i dont think you could miss. I have 95s in my 92 you will have about 190+psi that is normal with this modification. Just because you have high compression doesnt mean you have these pistons. Could be carbon buildup.

 

[boost]

Yes dsm pistons all have the same writing on top. From the last picture you have it looks like theyre 95+. The 90-94 pistons are 7.8 to 1 compression ratio. You said they were almost flat top and 90-94 have quite a deep dish that i dont think you could miss. I have 95s in my 92 you will have about 190+psi that is normal with this modification. Just because you have high compression doesnt mean you have these pistons. Could be carbon buildup.