GSC P-D Nissan RB26DETT 31.15mm Head +1mm OS 103.24mm Long +1.5mm Tip Exhaust Valve - Set of 12

If you're rebuilding the top end of your Nissan RB26DETT engine, especially for high-performance applications, you'll want to pay close attention to the valves. These GSC Power Division exhaust valves are specifically made to handle the demands of a performance RB26. They are a direct replacement for your stock exhaust valves, but with some key upgrades that make a difference when you're pushing the engine hard.

This set includes 12 exhaust valves, each measuring 31.15mm in head diameter. They are also +1mm oversized, meaning they are slightly larger than stock to help improve sealing and flow when used with appropriately sized valve seats. The valves are 103.24mm long and feature a +1.5mm tip, which is important for proper valve train geometry and lift. GSC Power Division uses well-built materials and manufacturing processes to ensure these valves can withstand the heat and stress of an RB26 engine operating at higher RPMs and boost levels. This attention to detail helps prevent valve float and ensures consistent performance under demanding conditions.

When rebuilding an RB26, using quality internal components like these valves is crucial for reliability and performance. Make sure to have your valve seats properly machined to match the +1mm oversize of these valves for optimal sealing. This set is designed to be a direct fit for the Nissan RB26DETT engine, simplifying installation during your rebuild.