This is a new set of 92mm big bore Porsche 911 2.7l high compression je pistons & cylinders. The compression ratio is 10.5:1 with the 70.4mm crank. je forgings are made from 2618 aluminum, they have a 0 offset with extra material under the top for the valve pockets. The cast iron liners come with out the head gasket grove.
Kit includes: 6 cylinders, 6 pistons, a set of piston rings, and 6 wrist pins and clips.