Mahle MS Piston Set Chevy LS Flat Top 327cid 3.79in Bor 3.622in Stk 6.098in Rd .945 Pin -4.2cc 9.7CR

If you're rebuilding a Chevy LS engine and need a solid set of pistons for a 327 cubic inch displacement, this Mahle MS Piston Set is a well-built option. These are flat-top pistons designed for a 3.790-inch bore and a 3.622-inch stroke, with a 6.098-inch rod length and a standard 0.945-inch pin. They are constructed from 2618 aluminum, a material known for its strength and durability in high-performance applications.

Mahle has engineered these pistons to achieve a 9.7:1 compression ratio with a -4.2cc dish volume. This specific compression ratio is often sought after for naturally aspirated builds or those using moderate boost, offering a good balance of power and drivability. The pistons weigh in at 425 grams each, which is a reasonable weight for forged pistons of this size, contributing to good engine balance. The included pin is a standard 0.945-inch diameter, common for many performance LS applications.

It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions and specifications to ensure proper fitment and performance for your specific engine build.