Wiseco BMW S38B36 3.6L -6cc Dish 94mm Bore 12:1 CR Build on Demand

Wiseco is well-known for making strong internal engine components, and these forged pistons are a prime example of their work for the BMW S38B36 engine. If you're rebuilding the top end of your 1991-1993 BMW M5, these pistons are built to handle the demands of a high-performance engine. They feature a 94mm bore and a -6cc dish, which helps achieve a 12:1 compression ratio when installed in the 3.6L S38B36 block.

Forged pistons like these are significantly stronger than cast pistons. They start as a solid block of aluminum that's heated and hammered into shape under immense pressure. This process aligns the metal's grain structure, making them much more resistant to detonation and the stresses of increased cylinder pressures. The 12:1 compression ratio is a notable bump over stock, which can lead to improved power output when paired with appropriate tuning and supporting modifications. The -6cc dish is a specific design element to achieve this target compression, so it's important to ensure this matches your build goals.

When undertaking an engine rebuild of this caliber, it's crucial to have all the necessary components. These pistons are sold as a set, and you'll want to confirm you have the correct ring set and connecting rods for your specific application. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.