| This is a complete set of 6 cast flat top pistons with rings.Other styles and sizes of pistons are available as well, call for details if you don't see them listed on our store. Available in stock bore (86 mm) or .5mm and 1.0mm overbore sizes. The price is the same for most overbore sizes. These pistons/ring sets are made in Japan to OEM specs. They will fit all L28 non turbo engines regardless of year. If you aren't sure about which piston you should use in your z, feel free to contact us and we'll be more than happy to advise you accordingly. When ordering these Piston/Ring sets, be sure to include the size of piston you desire in the notes section. These sets are available in stock bore (86mm), .5 mm (.020) overbore, and 1.0 mm (.040) overbore sizes. For other sizes we would need to do a search and check for availability. Prices may vary on sizes not listed. Our inventory does vary so we may or may not have your specific size in stock. If we don't have it in stock please allow an extra week for delivery. If you use flat top pistons in the L28, and you use any of the following head numbers, you will need to install a high performance cam as well or you will get pre-ignition or pinging on acceleration even with premium pump gas. This scenario will kill your engine if left unattended. E30, E31, E88, N42, & N47. Only the P series heads will work properly with flat tops if you don't have a big cam. At the time that you order these pistons we'll let you know if we have them in stock. If we don't have them in stock please allow an extra week for delivery. Subject to availability. Last update 03/11 | 
