83.5mm Porsche 356/912 Big Bore Kit w/ Biral Cylinders & JE Forged Pistons "Low Comp" Engle If you need help or

If you need help or you're curious about what valve-train you should use

The 500 Series Castings come STD with: Cleanflowingcooling vanes

7L Head Gasket 90mm 1974-77

Bolt Type: ARP 625

A 100% pure silicone jacket is totally resistant to oil penetration

83.5mm Porsche 356/912 Big Bore Kit w/ Biral Cylinders & JE Forged Pistons "Low Comp" Engle If you need help orThis is a new set 83. 5mm Porsche 356 912 JE High Compression pistons with Biralcylinders. It fits Porsche 356; C, SC, 1963 66 &Porsche 912; 1965 and Upwith the 3 piece case. The Cylinders are BiralwithJEForged pistons with 30 Angle. JEForgings are made from 2618 Aluminum, They have a 0 offset with extramaterial under the top for thevalve pocket, Biral Liners are a cast iron sleeve with aluminum fins, making them lighter and dissipate heat better.