84mm Porsche 911 Hi Comp, Piston & Cylinder Kit 4340 0L Highcompression JE pistons with

0L Highcompression JE pistons with Biral cylinders

This is a new set of 86mm Porsche 911 2

Cylinders: Cast iron

Stroke: 71mm stroke pistons

84mm Porsche 911 Hi Comp, Piston & Cylinder Kit 4340 0L Highcompression JE pistons withThis is a new set of 84mm Porsche 911 2. 2 2. 4L Highcompression pistons with Biral cylinders. The Compression ratios are 9. 1: 1 with the 66mm crank and 9. 7: 1 with the 70. 4mm. The Cylinders are Biral with Graphite Coated Hypereutectic pistons with valve pockets, and the 22mm Pin. 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