Supertech Performance NEVI-1052-NEO-12 Inconel Exhaust Valves RB25DET NEO Solid Lifter Conversion +1mm Oversize

The Supertech Performance NEVI-1052-NEO-12 exhaust valves are designed for Nissan RB25DET engines, specifically for solid lifter conversion on OEM hydraulic lifter engines. These high-performance valves are manufactured from Inconel material, a one piece forged, high temperature, high nickel, stainless steel alloy that provides superior heat resistance for demanding racing and high-boost applications.

Key Specifications:

• Head Diameter: 30.65mm (+1mm oversize)
• Stem Diameter: 5.94mm
• Length: 105.8mm
• Material: Inconel 751/Nimonic nickel-based alloy

Performance Features:

• CNC finished to strict tolerances making these valves the choice for the most demanding race classes
• Incredible temperature distribution that lowers temperatures across the entire cylinder head
• Perfect for engines that reach very high exhaust gas temperatures, such as large-frame turbo engines in both street and race applications
• Swirl polished finish with stem undercut and hardened tip
• Designed specifically for hydraulic to solid lifter conversion applications

These Supertech Performance exhaust valves are engineered for RB25DET NEO engines requiring upgraded valve train components for high-RPM, high-boost, or racing applications. The +1mm oversize head diameter provides improved flow characteristics while the extended 105.8mm length accommodates solid lifter bucket configurations.