NT piston difference PIC'S

[everydaydriven]

So yea I ate some valves. First time on a NT 4g63. I purchased some used pistons and upon arrival they are different than what is in the block. I have taken a few shots, please tell me the difference of these as I need car runnin on the ASAP status.

Thanks so much Tuners you always help me on the Newbie tread.
Jake

 

[JusMX141]

We already have photos of why they're different uploaded in other threads.

As you can see, the location of the ring lands on the non-turbo piston (right) are what makes them more fragile to detonation.

Thanks for your efforts.

 

[Colt4G63 also]

So those are both N/A pistons in the picture? What are you seeing different? If the piston pins are 1mm different size, then you have a 6 bolt N/A and a 7 bolt N/A piston.