Mahle MS Piston Set LS 434cid 4.155Bore 4.000 Stroke 6.125 Rod 0.927 Pin -5.8cc 462g 11.5CR

If you're building a high-performance LS engine, this Mahle MS Piston Set is designed for serious power. This set is specifically for 434 cubic inch LSX engines, featuring a 4.155-inch bore and a 4.000-inch stroke. Mahle is a well-known name in engine components, and these pistons are built for demanding applications where reliability and performance are key.

These pistons are forged from 2618 aluminum, a strong material commonly used for high-performance pistons because it can withstand the extreme pressures and temperatures found in powerful engines. They have a -5.8cc dish volume, which, combined with the other engine dimensions, results in an 11.5:1 compression ratio. This compression ratio is a good balance for many naturally aspirated or forced-induction builds, offering a noticeable bump in power without being overly sensitive to fuel octane. Each piston weighs in at 462 grams, and they are designed to work with a 6.125-inch connecting rod and a 0.927-inch wrist pin.

When you're putting together a custom engine like this, using well-made components is crucial. This Mahle piston set is a solid option for builders looking for a reliable foundation for their LSX project. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.