This is a new set  82.5mm Porsche 356/912 JE High Compression pistons with Biral cylinders. It fits Porsche 356; C, SC,  1963-66 & Porsche 912; 1965 and Up with the 3 piece case. The Cylinders are Biral with JE Forged pistons with 30° Angle. JE Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pocket, Biral Liners are a cast iron sleeve with aluminum fins, making them lighter and dissipate heat better. This is a High Compression kit 11.5:1 more commonly used in race-cars . This kit requires no machine work, when installing in factory Porsche case & heads

Engine size: 1600cc

Stroke: 74mm

Cylinders: Biral.

Pistons: JE 2618 Forged

Dome Height: .295

Compression: 11.5:1

Piston Angle: 30°

Kit includes: 4 Cylinders, 4 Pistons, A set Piston Rings, and 4 wrist pins and clips.

Part # 008 11 82P JE