Mahle MS Piston Set SBF 333ci 4.040in Bore 3.25in Stroke 5.4in Rod .927 Pin -6cc 9.6 CR Set of 8

These Mahle MS Piston sets are built with 4032 aluminum, a material known for its strength and ability to handle the heat and stress of performance engines. Each piston in this set is designed for a 4.040-inch bore, with a 3.250-inch stroke and a 5.400-inch rod length, creating a 333 cubic inch displacement. The -6.5cc dish volume, combined with other engine components, results in a 9.7:1 compression ratio, which is a solid choice for a wide range of street and strip applications where pump gas is used.

Weighing in at 417 grams each, these pistons are well-balanced for reliable operation. They utilize a standard 0.927-inch pin diameter, making them compatible with many common connecting rods. The 4032 aluminum alloy offers improved thermal expansion characteristics compared to older 2618 alloys, meaning they can run a slightly tighter piston-to-wall clearance for reduced noise and better sealing. This makes them a popular choice for builders looking for a durable, high-performance piston that can be driven regularly.

This set includes eight pistons, enough for a complete V8 engine. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and torque requirements when installing performance engine components.