Mahle MS Piston Set BBC 515ci 4.530in Bore 4.00in Stroke 6.135in Rod 0.990 Pin -3cc 9.0 CR Set of 8

If you're building a high-performance Big Block Chevy engine, this Mahle MS Piston Set is a solid choice for your 515 cubic inch application. These pistons are designed for a 4.530-inch bore and a 4.00-inch stroke, with a 6.135-inch rod length and a 0.990-inch pin. They feature a -3.4cc dish, which helps achieve a 9.0 compression ratio with a standard deck height of 9.800 inches.

Mahle uses 4032 aluminum for these pistons, a well-known material in performance engine building because it offers a good balance of strength and thermal expansion properties. This helps ensure the pistons can handle the demands of a powerful engine while maintaining proper clearance as they heat up. Each piston weighs in at 593 grams, contributing to a balanced rotating assembly. This set includes all eight pistons needed for a V8 engine.

It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and the manufacturer's installation instructions for proper assembly and tuning.