Buick V6 Piston Photo Guide
There were many different castings and designs of pistons for the Buick V6 over the years.
3.8 Liter Intercooled Turbo Piston
3.8 Liter Federal Mogul Hyperuetic Piston
3.8 Liter Speed Pro Hyperuetic Piston
3.8 Liter TRW Forged Piston
4.1 Liter Speed Pro Hyperuetic Piston
4.1 Liter JE Forged Piston