Mahle MS Piston Set RB30DET 86.50mm Bore 85.0mm Stroke 152.5mm Rod 21mm Pin -4.5cc 8.5 CR Set of 6

Forged from 2618 aluminum alloy, these Mahle MS pistons are built to handle the demands of a high-performance RB30DET engine. The 86.50mm bore size is a common upgrade for those looking to increase displacement, paired with an 85.0mm stroke and a 152.5mm rod length, these pistons are designed for a specific engine configuration. The -4.3cc dish volume contributes to an 8.0:1 compression ratio, which is well-suited for boosted applications where detonation control is critical.

Each piston weighs in at 332 grams, a testament to the lightweight yet strong nature of the 2618 aluminum. This material choice is popular in racing and performance applications because it offers excellent strength at elevated temperatures and pressures, while also being relatively lightweight to reduce reciprocating mass. The 21mm pin diameter is standard for many performance applications, ensuring compatibility with a wide range of connecting rods. This set includes six pistons, providing a complete solution for a 6-cylinder engine rebuild.

When rebuilding your RB30DET, using well-built pistons like these Mahle units is crucial for reliability and performance. They are designed to fit the Nissan RB30ET 3.0L engine. Please note that these pistons are not CARB approved and cannot be shipped to California. It's always recommended to consult your engine builder or refer to Mahle's installation guidelines for specific details regarding assembly and break-in procedures.