Mahle MS Piston Set SBC 384ci 4.040in Bore 3.75in Stroke 6.0in Rod .927 Pin 6cc 12.1 CR Set of 8

If you're rebuilding a Chevrolet Small Block engine and looking for a solid set of pistons for a 384 cubic inch displacement, this Mahle MS Piston Set is a well-built option. These pistons are designed for a 4.040-inch bore and a 3.75-inch stroke, which are common dimensions for performance builds aiming for around 384 cubic inches. They come with a 6.0-inch rod length compatibility and a .927-inch pin diameter, fitting many popular connecting rod setups.

Mahle is known for making durable engine components, and this set is no exception. The pistons are forged from 2618 aluminum, a material chosen for its strength and ability to withstand the higher pressures and temperatures found in performance engines. This forged construction offers improved resistance to detonation and fatigue compared to cast pistons. The 6cc valve relief volume is designed to provide adequate clearance for most common valve sizes in performance cylinder heads, contributing to a 12.1:1 compression ratio with the specified components. Each piston weighs around 466 grams, which is a reasonable weight for a forged piston of this size, helping to keep rotating assembly balance in check.

This set includes eight pistons, ready for your next engine build. Please note that these pistons are not CARB approved and cannot be shipped to California. It's always a good idea to consult your engine builder or a trusted mechanic to ensure these specifications align with your specific build goals and cylinder head choices.