ITM RY6134-STD 86mm Flat Top Pistons and rings, fits Nissan/Datsun 280ZX 2.8L-L6, for stock fit or higher compression. 

Brand New In Box. 

Check head and piston clearance before full assembly, if uncertain, check with engine builder or machinist for clearances with your build.

Return available if unused and in original manufactures box.