Mahle MS Piston Set SBC 384ci 4.04in Bore 3.75in Stk 6.125in Rod .927in Pin -4cc 11.3 CR Set of 8

If you're building a high-performance Small Block Chevrolet engine, this Mahle MS Piston Set is a solid choice for your 384 cubic inch application. These pistons are designed to work with a 3.75-inch stroke crankshaft and a 6.125-inch connecting rod, featuring a 4.04-inch bore diameter. The set includes eight pistons, each with a -4cc dish volume, which contributes to a calculated compression ratio of 11.3:1 when paired with appropriate cylinder heads. This compression level is well-suited for naturally aspirated performance builds aiming for significant power gains.

Mahle is known for well-built engine components, and these pistons are no exception. They are forged from 4032 aluminum, a material chosen for its strength and resistance to thermal expansion, making them durable for demanding engine builds. Each piston weighs approximately 380 grams, which helps in achieving a balanced rotating assembly for smoother engine operation at higher RPMs. The .927-inch wrist pin diameter is standard for many performance Small Block Chevy applications, ensuring compatibility with a wide range of connecting rods.

When undertaking a performance engine build of this caliber, it's important to ensure all components work together. This piston set is designed for a 3.75-inch stroke and 6.125-inch rod combination, and the -4cc dish volume is critical for achieving the target 11.3:1 compression ratio. Remember that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for proper fitment and assembly procedures to ensure the longevity and performance of your engine.