Features of Note:
- This is the stock Buick V6 turbo piston part # 25531260. Some sources state that AE (now part of Federal Mogul) made them for GM under the "Hepolite" brand
- It has the steel insert under the crown which forms the top ring land.
- It has dual oil drippers from the bottom ring to lubricate the piston pin. There are no drains to the inside of the piston as with other versions of the piston
- It has a full skirt.
- It has support under the pin.
- You can see the cast finish of the piston.
- This piston has the smoothest moving piston pin of all versions of the piston.
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Features of Note:
- It has a dished top with a cast finish.
- There are no drain holes drilled from the bottom ring land to the inside of the piston.
- The light spot in the dish is a small dimple on the same side of the piston as the green dot was on the bottom of the piston. It should show the side to the front during installation.
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