Mahle MS Piston Set Chevy SB 393ci 4.155in Bore 3.625 Stroke 6.125 Rod .927 Pin 4cc 12.7CR

This Mahle MS Piston Set is built for Chevy Small Block engines aiming for a 393 cubic inch displacement. You get a complete set of pistons designed to work with a 4.155-inch bore and a 3.625-inch stroke, featuring a 6.125-inch rod length and a .927-inch pin. Each piston has a 4cc dish volume, contributing to a 12.7:1 compression ratio, and weighs in at 439 grams. These pistons are forged from 2618 aluminum, a material known for its strength and durability under high stress.

Mahle's MS series pistons are a popular choice for performance builds where reliability and strength are paramount. The forged construction means they can handle the increased cylinder pressures and temperatures associated with higher compression and more aggressive engine tuning. The specific dish volume and bore size are carefully matched to achieve the target 12.7:1 compression ratio, which is ideal for naturally aspirated engines seeking maximum power output. The .927-inch pin size is standard for many performance applications, ensuring good compatibility with various connecting rod options.

When installing these pistons, it's important to follow precise clearances and ring gap specifications as outlined by Mahle to ensure optimal performance and longevity. Remember that this piston set is not CARB approved and cannot be shipped to California. Always consult your engine builder or a professional mechanic for specific installation advice and to ensure all components are compatible with your build.