Supertech Nissan RB20 2.0L 79 mm Bore +1.3cc Dome 8.5:1 CR Pistons - Set of 6 (Excl Rings)

Supertech offers a set of six forged pistons specifically for the Nissan RB20 2.0L engine. These pistons feature a 79mm bore and a dome volume of +1.3cc, which results in a compression ratio of 8.5:1. This setup is designed for builders looking to assemble or rebuild a robust RB20 engine, whether for street performance or track use. The forged construction means these pistons are built to handle increased cylinder pressures and temperatures compared to cast pistons.

The key benefit of using forged pistons like these from Supertech is their inherent strength and durability. Forged from high-strength aluminum alloy, they resist deformation under extreme conditions, making them a solid choice for engines that will be pushed hard. The precise dome shape is engineered to work with specific cylinder head volumes to achieve the target 8.5:1 compression ratio, which offers a good balance for many performance applications, allowing for more aggressive camshafts and boost levels without excessive detonation risk. It's important to note that this set includes the pistons only; piston rings are sold separately and must be sourced to complete the assembly.

When installing these pistons, ensure you have the correct ring set that matches the 79mm bore size and the piston groove dimensions. Proper balancing of the rotating assembly, including these new pistons, is also crucial for engine longevity and smooth operation. Always refer to the manufacturer's detailed installation instructions for specific clearances and procedures to ensure a successful engine build.