GSC P-D Nissan VR38DETT Chrome Polished Super Alloy Exhaust Valve - 32.15mm Head STD - SET OF 12 (2055-120)
Our goal in developing our new valve line was to produce the highest-performing, longest-lasting valves the aftermarket could offer. Through the use of sophisticated 3D design and simulation software, we have developed a valve head design that is stronger and flows higher. To ensure that we have the highest flowing valve head on the market right now, we flow-test prototype valve heads in the relevant applications. We have less valve distortion at the face with the materials than with any of the tested designs. Reduced distortion enables more reliable performance throughout the valve's life and better sealing in adverse situations. The new valves from GSC Power-Division are certain to set the bar for sport compact performance valves in the industry.
Application
- Nissan VR38DETT
Features
- Swirl polished heads for smoother air flow over the valve
- Back cut to reduce valve weight for higher RPM, higher boost pressure, and allow for more aggressive cam profiles without increasing valve spring seat pressures
- Valve stems are micro-polished to allow for less oil retention on the stem, which creates less drag on the stem to guide for a smoother motion
- Exhaust valves are a superalloy (Inconel 751) featuring a high yield strength and high tolerance for extreme heat to maintain longevity
- Valve tips are hardened to within 5 Rockwell C of the rocker or valve tappet for extended life and less wear
- We have adjusted the keeper groove to properly balance intake and exhaust spring pressures to reduce the use of valve spring shims and maximize performance from our spring and retainer kits
- Valves will work with an OEM keeper/lock or, when available, our upgrade keeper/lock. It's not mandatory, but it is suggested, that any valve lock not be reused on performance applications due to material grooving
- Valve tip lengths - we have taken extra time to adjust tip heights on this application to require less tipping of the valve to maintain proper tip height for proper valve train geometry and to cut down on install times when setting valve lash. The GSC2055-01, and GSC2055-12 valve protrusion have been shortened by .25mm to reduce the need to tip the valves on cylinder heads that are receiving a valve job. For direct factory replacement, where a valve job is not being performed, please use part number GSC2051-01 or 2051-12
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WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.
GSC P-D Nissan VR38DETT Chrome Polished Super Alloy Exhaust Valve - 32.15mm Head STD - SET OF 12 (2055-120)
