Supertech Nissan SR20DET/RB26 6mm Stem Manganese Bronze .001in OS Intake Valve Guide - Set of 12

If you're rebuilding the top end of your Nissan SR20DET or RB26 engine, these intake valve guides from Supertech are a solid choice. They're made from manganese bronze, a material known for its good wear resistance and ability to handle heat, which is important for keeping your valves sealing properly under pressure. This set includes 12 guides, enough for a full engine build, and they're designed to be a .001 inch oversize, meaning they're meant to be honed to fit a specific valve stem size during the rebuild process. The 6mm stem diameter matches the factory specification for these popular Nissan performance engines.

Manganese bronze is a popular material for valve guides because it offers a good balance of durability and lubricity, helping to reduce friction and wear on the valve stems. This can lead to improved valve sealing and longer engine life. Supertech is a well-known name in performance engine components, and these guides reflect their focus on providing parts that can handle the demands of performance applications.