Supertech BMW S14 32.5 x 6.95 x 126.10mm Blk Nitrided Triple Groove Exhaust Valve - Set of 8

These Supertech exhaust valves feature a black nitrided finish, a surface treatment that hardens the valve face and stem for improved durability and resistance to wear. Each valve measures 32.5mm in diameter, with a 6.95mm stem and a total length of 126.10mm, designed specifically for the BMW S14 engine. The triple groove design on the stem is crucial for proper valve spring retainer and lock engagement, ensuring secure seating and reliable operation under high engine loads.

Built for performance applications, these valves are a well-built component for rebuilding or upgrading your S14's cylinder head. The nitriding process not only increases surface hardness but also helps reduce friction, contributing to smoother valve train operation and potentially improved engine response. This set includes eight valves, providing a complete solution for a single cylinder head.

When rebuilding the top end of your S14, using components like these nitrided valves can make a notable difference in the longevity and performance of your engine. Ensure all valve guides are in good condition and properly sized for these stems before installation.