Mahle MS Piston Set BBC 460ci 4.280in Bore 4.00in Stroke 6.385in Rod .990 Pin 48cc 12.8 CR Set of 8

Mahle is a well-known name in engine components, and this MS Piston Set is built for serious performance builds. If you're working on a Big Block Chevy 460 cubic inch engine, these pistons are designed to handle the demands of a high-performance application. They feature a 4.280-inch bore and a 4.00-inch stroke, which are key dimensions for achieving the desired displacement and compression ratio.

This set includes eight pistons, each crafted from 2618 aluminum, a material chosen for its strength and ability to withstand high temperatures and pressures common in performance engines. The pistons have a 48cc dome volume, contributing to a 12.8:1 compression ratio when paired with a standard deck height (9.800 inches) and a 4.00-inch stroke. The included pins are 0.990 inches, a common size for performance applications, and the rod length specified is 6.385 inches, which works with the piston's compression height to achieve the correct deck clearance. Each piston weighs 621 grams, helping to balance the rotating assembly for smoother operation at higher RPMs.

When installing these pistons, remember that they are not CARB approved and cannot be shipped to California. It's also important to note that this set is designed for specific engine configurations, so double-check your engine's bore, stroke, rod length, and deck height to ensure compatibility. Proper balancing of the rotating assembly is crucial for longevity and performance with these types of pistons.