Mahle MS Piston Set SBF 420ci 4.040in Bore 4.1in Stroke 6.2in Rod .927 Pin -6cc 11.9 CR Set of 8

This set includes eight Mahle MS forged pistons, designed for a Ford Small Block 410 cubic inch engine. These pistons feature a 4.040-inch bore and a 4.1-inch stroke, paired with 6.2-inch connecting rods and a 0.927-inch pin. The -6cc dish volume contributes to a calculated compression ratio of 11.9:1, making them suitable for builds aiming for higher performance.

Constructed from 4032 aluminum, these pistons are well-built for durability and performance. The material choice offers a good balance of strength and lighter weight compared to cast pistons. Each piston weighs 428 grams, which is important for engine balance and reducing stress on rotating components. The specific dimensions, including the 1.245-inch compression height (CH) and the 4.000-inch stroke compatibility, are critical for ensuring proper piston-to-valve clearance and overall engine geometry.

It's important to note that these pistons are not CARB approved and cannot be shipped to California. They are designed for performance applications where precise engine building is key. Ensure you have the necessary supporting components and expertise for installation, as this is a significant engine build part.