Supertech BMW B58 82mm Bore 36cc 11:1 CR 2618 Pistons - Set of 6 (Excl Rings)

If you're looking to rebuild or significantly upgrade the engine in your BMW B58-powered vehicle, these Supertech forged pistons are a solid choice. This set includes six pistons, each with an 82mm bore and a 36cc dish volume, designed to achieve an 11:1 compression ratio. They are constructed from 2618 aluminum alloy, a material known for its strength and durability under high stress, making it ideal for performance engine builds. This set does not include piston rings, so you'll need to source those separately.

Supertech has a reputation for well-built engine components, and these pistons are no exception. The 2618 alloy offers excellent thermal expansion properties, which helps maintain proper piston-to-wall clearance across a wide range of operating temperatures. This is crucial for preventing premature wear and ensuring consistent performance, especially in high-output applications. The 11:1 compression ratio is a popular target for naturally aspirated or mild forced induction builds, offering an improved powerband without requiring extreme octane fuel in many cases. Remember that when rebuilding an engine with new pistons, it's essential to ensure your cylinder bores are properly honed to match the piston skirt design for optimal oil control and break-in.

When undertaking an engine build of this caliber, it's important to consider all the necessary components. Since this set excludes piston rings, you'll need to select a compatible set that matches the bore size and your intended application. Additionally, ensure your connecting rods and crankshaft are in good condition or are also upgraded to handle the increased performance. Always refer to the manufacturer's detailed installation instructions and torque specifications for your specific BMW B58 engine to ensure a proper and reliable rebuild.