For sale is an Enginetech P3000(4)100 Piston SetBore Size: 100 (contact us for additional sizes)General Information about Enginetech Piston Sets:Enginetech pistons are manufactured with state of the art materials to match OE requirements. Enginetech offers cast aluminum, hypereutectic, and forged applications. Treatments such as skirt coatings, anodized heads, & Ni-resist inserts are used as required.