Mahle MS Piston Set SBC 406ci 4.155in Bore 3.480/3.5stk 6.125in Rod 0.927 Pin -26cc 9.4 CR Set of 8

Mahle is well-known for making solid engine components, and this piston set is a prime example of their work for Small Block Chevrolet engines. If you're building or rebuilding a 406 cubic inch (or 407 cid as specified in the data) engine, these pistons are designed to handle the demands of a performance build. They feature a 4.155-inch bore and are crafted from 4032 aluminum, a material chosen for its strength and ability to handle higher temperatures and pressures compared to cast aluminum.

This set is engineered for a 3.480-inch stroke with a 6.125-inch connecting rod, and includes a 0.927-inch pin. The dish volume is -26cc, which helps achieve a 9.4:1 compression ratio when paired with the right cylinder heads and gasket combination. This compression ratio is a popular choice for naturally aspirated street/strip applications, offering a good balance of power and drivability. The pistons are forged, meaning they undergo a process that aligns the metal's grain structure, making them significantly stronger and more resistant to detonation and fatigue than cast pistons. This makes them a reliable choice for engines that will see spirited use.

When installing these pistons, remember they are designed for a specific stroke and rod length to achieve the target compression ratio. It's always a good idea to double-check your deck height and piston-to-valve clearance before final assembly. Please note that this piston set is not CARB approved and cannot be shipped to California. Ensure you consult your engine builder or a trusted mechanic to confirm compatibility with your specific build plans.