HKS PISTON KIT RB26 2.8L S ZERO 86.5

This is the HKS RB26 2.8L S ZERO piston kit, designed for builders looking to significantly increase the displacement and strength of their RB26 engine. These pistons are specifically forged to allow for a 2.8-liter conversion, meaning they are larger than stock to accommodate the increased bore size of 86.5mm. This kit is a critical component for anyone undertaking a serious engine rebuild where enhanced performance and durability are the primary goals.

Crafted from high-strength forged aluminum, these pistons are built to withstand the higher cylinder pressures and temperatures that come with a larger displacement and performance tuning. The S ZERO designation indicates a specific design philosophy from HKS, often focusing on a balance of strength, weight, and performance characteristics suitable for demanding applications. Each piston in the kit is precision-machined to ensure a perfect fit within the cylinder bore and proper valve clearance, which is crucial for engine longevity and optimal power output. This kit is intended for builders who are already familiar with the intricacies of engine building and are aiming for a robust, high-performance RB26 engine.

When undertaking a 2.8-liter conversion with this HKS piston kit, it's important to note that this is not a simple bolt-on modification. It requires professional machine work to the engine block to achieve the correct bore size and ensure proper piston-to-wall clearance. Additionally, you will need to consider supporting modifications such as upgraded connecting rods, a balanced crankshaft, and a comprehensive engine management system to take full advantage of the increased displacement and the strength of these pistons. This kit is not CARB approved and cannot be shipped to California.