Supertech Honda K24 w/K20 Head 87.5mm Bore +11.4cc Dome 12.5:1 CR Pistons - Set of 4 (Excl Rings)

These Supertech pistons are forged from 2618 aluminum, a strong material commonly used for high-performance engine components. This specific set is designed for Honda K24 engines when fitted with a K20 cylinder head, featuring an 87.5mm bore and a +11.4cc dome that helps achieve a 12.5:1 compression ratio. This increased compression is a key factor in boosting an engine's power output and efficiency, especially when paired with performance camshafts and tuning.

The 2618 aluminum alloy offers good thermal expansion properties, which is important for maintaining proper piston-to-wall clearance under varying engine temperatures. The dome shape is carefully calculated to work with the K20 head's combustion chamber volume, optimizing the burn and contributing to the target compression ratio. This set includes four pistons, but remember that piston rings are sold separately, so you'll need to source those to complete the installation.

When rebuilding or upgrading your K-series engine, choosing pistons that match your cylinder head and desired compression ratio is crucial. These Supertech pistons offer a well-built option for enthusiasts looking to build a high-compression naturally aspirated or forced induction setup. Always refer to the manufacturer's installation instructions for proper ring gap, bearing clearance, and assembly procedures.