Mahle MS Piston Set BBC 460ci 4.280in Bore 4.00in Stroke 6.385in Rod .990 Pin 28cc 10.4 CR Set of 8

If you're rebuilding the heart of your big block Chevy, especially a 460 cubic inch engine, a solid set of pistons is where you start. This Mahle MS piston set is built for that purpose, designed to handle the demands of a performance engine build. They feature a 4.280-inch bore and are intended for a 4.000-inch stroke with a 6.385-inch connecting rod, giving you the core dimensions for a powerful engine.

These pistons are forged from 2618 aluminum, a strong material commonly used in high-performance applications because it can withstand high temperatures and pressures. They come with a 0.990-inch pin and have a 28cc dome volume, which contributes to a 10.5:1 compression ratio when paired with the right cylinder heads and deck height. This compression ratio is a good balance for many performance builds, offering strong power output without being overly sensitive to fuel octane. Each piston weighs in at 587 grams, which is a reasonable weight for a forged piston of this size, helping to keep reciprocating assembly balance manageable.

This set includes eight pistons, enough for a complete V8 engine. It's important to note that these pistons are not CARB approved and cannot be shipped to California due to emissions regulations. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures, especially when dealing with critical engine components like pistons.