81mm Porsche 911 JE Forged Piston & Cylinder Kit Biral Compression Height: 40

Compression Height: 40

5mm Depth and is set up for a 200mm VW Clutch Features a heat treated 12 Volt VW ring gear

420 Cam Lift

Engine: 356C and 912

81mm Porsche 911 JE Forged Piston & Cylinder Kit Biral Compression Height: 40This is a new set of 81mm Porsche 911 2. 0L Highcompression JE pistons with Biral cylinders. The Compression ratio is 9. 5: 1 with the 66mm crank. JE Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pockets. 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