Mahle MS Piston Set SBC 407ci 4.155in Bore 3.5/3.75stk 6.125/6in Rod .927 Pin 12.5/13.3 CR Set of 8

If you're building a high-performance Small Block Chevrolet (SBC) engine, especially one aiming for around 407 cubic inches, a solid set of pistons is crucial. This Mahle MS Piston Set is designed for that purpose, offering a 4.155-inch bore size that's ideal for stroker cranks and custom builds. These pistons are forged from 2618 aluminum, a material known for its strength and durability under high stress, making them a well-built choice for performance applications where reliability is key.

This set is engineered to work with a 3.500-inch or 3.750-inch stroke crankshaft and 6.125-inch or 6.000-inch connecting rods, featuring a standard .927-inch wrist pin. The dish volume is -8.9cc, which, when combined with the right cylinder head, helps achieve a compression ratio of 12.5:1 or 13.3:1, depending on your specific combination. This level of compression is suitable for performance street engines or dedicated race applications that require a significant power boost. Each piston weighs approximately 446 grams, contributing to a balanced rotating assembly for smoother operation at higher RPMs.

It's important to note that these pistons are not CARB approved and cannot be shipped to California due to emissions regulations. They are also subject to Prop 65 warnings. For a successful build, ensure you have the correct machining done for the bore and that your connecting rods and crankshaft are properly balanced with these pistons and rings. This set includes eight pistons, ready for your next engine project.