Mahle MS Piston Set Chevy Big Block 568ci 4.61in Bore 4.25in Stk 6.535in Rod .99 Pin - Set of 8

If you're building a serious drag racing engine for your Chevy Big Block, Mahle's Elite Sportsman Piston Set is a solid choice. This set is specifically designed for the demands of the drag strip, featuring a robust construction that can handle the high stresses of competition. These pistons are engineered for 568 cubic inch displacement engines, with a 4.610-inch bore and a 4.250-inch stroke, designed to work with a 6.535-inch connecting rod and a 0.990-inch wrist pin.

Mahle uses a high-strength 2618 aluminum alloy for these pistons, which is well-known for its durability and ability to withstand extreme temperatures and pressures common in racing applications. The pistons are forged, meaning they undergo a process that aligns the grain structure of the metal, making them significantly stronger and more resistant to fatigue than cast pistons. This set is designed for cylinder heads with either 24-degree or 25-degree valve angles and features a dish volume of 42.0cc, resulting in a compression ratio of 14.4:1 with the specified components. Each piston weighs in at 623 grams, contributing to a balanced rotating assembly.

It's important to note that these pistons are not CARB approved and cannot be shipped to California due to emissions regulations. They also carry a Prop 65 warning. For a high-performance drag build, ensuring proper clearances and balancing is key, so consult your engine builder or refer to Mahle's detailed specifications for installation.