QSC Porsche 911 cylinders/pistons are made of cast iron/aluminum. The surface of the cylinders is CNC machined for smooth operation. The structure of cylinders/pistons are designed to enhance the heat-resistance and durability. This set includes 6x 90mm cylinders, 6x pistons, 6x pins/clips. NO piston rings
The design of this cylinder set is modified from the stock's. The groove at the top of the rim has been removed, so the top is flat. Please refer to the pictures above.**
Application
- Porsche 911 2.5-2.7L
Specification
- Cylinders material: Cast iron
- Piston material: Aluminum Alloy
- Cylinders size: 90mm
- Compression ratio: 8.5:1
Features Highlights
- Smooth operation
- Heat resistant and durable
- Easy installation/li>
**Professional installation is recommended
**A break-in period of 500 miles is required after the installation
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