This is a new set  86mm Porsche 356/912 CP 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 CP Forged pistons with 30° Angle. CP Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pocket, CP kits come with wirelock pin clips for extreme RPM. Biral Liners are a cast iron sleeve with aluminum fins, making them lighter and dissipate heat better . This kit requires no machine work, when installing in factory Porsche case & heads

Engine size: 1600cc

Stroke: 74mm

Cylinders: Biral.

Pistons: CP 2618 Forged

Dome Height: .155

Compression: 9.5:1

Piston Angle: 30°

Kit includes: 4 Cylinders, 4 Pistons, A set of Piston Rings, and 4 wrist pins and wire locks with tool.

Part # 008 11 86P CP