Mahle MS Piston Set 78-92 Por 930 T 3.3-3.4L 98mm BR 74.4mm ST 127mm Rod 23mm Pin 14.2cc 7.7CR Set 6

This Mahle MS Piston Set includes six forged pistons, designed for Porsche 930 Turbo models with 3.3 to 3.4-liter engines built between 1978 and 1992. These pistons are a key component for anyone rebuilding or significantly upgrading the engine in these classic turbocharged Porsches. They feature a 98mm bore and are designed to work with a 74.4mm stroke, utilizing a 127mm connecting rod and a 23mm wrist pin.

Crafted from forged aluminum, these pistons offer improved strength and durability compared to cast pistons, making them suitable for the higher stresses of a performance turbocharged engine. The set includes pistons with a 14.2cc dish volume, resulting in a 7.7:1 compression ratio when paired with the appropriate cylinder heads and gasket combination. This specific compression ratio is often chosen to balance power output with the demands of forced induction, allowing for safe boost levels while maintaining good low-end response.

When undertaking an engine rebuild of this caliber, it's important to ensure all components are properly measured and installed according to manufacturer specifications. This set is intended for engine builders looking for well-made, performance-oriented pistons from a reputable brand like Mahle. Please note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for proper fitment and assembly procedures.