Carrillo Custom Pistons for S63 Bore 3.5059 CR 10:1 Coated for Alusil Bore w/ Broaches and CP Groove

When you're building a high-performance S63 engine, the pistons are a critical component that needs to handle serious stress. These custom pistons from Carrillo are designed to meet the demands of a performance build, offering a 10:1 compression ratio that balances power with pump gas compatibility for many setups. They are specifically made for Alusil cylinder bores, featuring a special coating to ensure proper operation and longevity in these engines. The 3.5059-inch bore size is precise for a tight, efficient fit.

Carrillo is known for its well-built engine components, and these pistons reflect that reputation. They come with broaches, which are important for proper oiling and piston skirt stability. The CP groove is also included, a detail that helps manage ring seal and combustion pressure effectively. This attention to detail in the design and manufacturing process means you're getting a part that's ready to perform under demanding conditions. The coating on the piston skirts is specifically chosen for its compatibility with Alusil cylinder walls, helping to reduce friction and wear.

Building an engine like the S63 often involves more than just pistons. While these pistons are a significant upgrade, ensure you have all the necessary supporting components for your build, such as rings, connecting rods, and a balanced crankshaft. Always refer to the manufacturer's detailed installation instructions and torque specifications to ensure proper assembly and performance. Please note that these pistons are not CARB approved and cannot be shipped to California.