OS Giken Nissan Skyline RB31.5 Engine Kit

What you get with the OS Giken Nissan Skyline RB31.5 Engine Kit is a complete package designed to rebuild your RB engine to a 3.15-liter displacement. This kit is intended for those looking to significantly enhance the performance and capability of their Nissan Skyline's RB engine. It's a comprehensive solution for a full engine overhaul, aiming to provide a strong foundation for increased power and improved engine characteristics.

This kit includes essential components for the engine's bottom end, focusing on the crankshaft, connecting rods, and pistons. The OS Giken crankshaft is a key piece, engineered to handle increased stress and deliver power reliably. Paired with the connecting rods and custom-sized pistons, it allows for the larger displacement, which directly translates to more torque and horsepower potential. OS Giken is known for its well-built internal engine components, and this kit reflects that reputation, offering a solid option for enthusiasts undertaking a serious engine build. The focus is on creating a robust and capable engine that can support further modifications or simply provide a significant upgrade over the stock configuration.

When undertaking an engine rebuild of this magnitude, it's important to have a clear plan for the rest of your build. While this kit focuses on the core rotating assembly and displacement increase, you'll want to consider supporting modifications such as cylinder head work, fuel system upgrades, and engine management to fully realize the potential of the larger displacement. OS Giken has a long history of producing high-performance parts for Japanese vehicles, and this RB31.5 kit is a testament to their expertise in engine building. Ensure you consult the manufacturer's installation instructions for specific details regarding assembly and break-in procedures.