GSC Power Division Flat Face +1mm Intake Valves Nissan VR38DETT

Low stock: 2

$368.67

$368.67 $368.67

Prop 65 Warning

This product can expose you to chemicals including Nickel, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Unlock Unmatched Performance and Durability

Looking to push your Nissan GT-R VR38DETT past the 2200+ HP threshold? GSC Power Division answers the call with the new Flat Face +1mm Head Diameter Stainless Steel Performance Intake Valve. Engineered for extreme airflow, efficiency, and durability under the most punishing conditions.

Optimized for Extreme Horsepower: Specifically designed to handle the heat and stress of VR38DETT engines pushing 2200+ HP. These valves are built from 21-4N Stainless Steel material, giving them unparalleled resistance to high temperatures and stress.
Back Cut for Maximum Airflow: The expertly engineered back cut design improves exhaust flow, increasing power output and allowing for higher RPMs—perfect for racing and high-performance setups.
Micro-Polished Valve Stems: Reduce friction and improve oil retention with micro-polished valve stems, ensuring smoother operation and extending the life of your components, even at peak RPMs.
Precision Fit with OEM Components: These valves integrate seamlessly with the VR38DETT’s OEM keepers/ locks, and standard aftermarket retainers. GSC Power Division recommends upgrading to new valve locks to prevent material grooving and maximize longevity.

Built for Racers, Designed for Durability

When your engine demands more power and precision, these Stainless Steel Performance Intake Valves deliver. Whether you're hitting the track or upgrading your street machine, these valves provide the reliability and performance you need at extreme HP levels.

+1mm Head Diameter: For enhanced airflow and increased power potential.
Sold Individually or in Sets of 12: Whether you need a single replacement or a full set, GSC has you covered.

Product fitment
VR38DETT

IMAGES ARE FOR ILLUSTRATION PURPOSES ONLY.

Valve Specification	Metric ( mm )	Imperial ( In )
Stem Diameter	5.97	.235
Overall Length	94.95	3.738
Head Diameter	38.15	1.502

Intake Valves

GSC Power-Division performance valves are designed for high-output engines where material strength, precision manufacturing, and thermal durability directly impact reliability and performance. Produced from carefully selected premium stainless steel and superalloy materials, GSC valves are built to withstand the elevated temperatures, cylinder pressures, RPM levels, and combustion demands found in modern performance engines.

Every valve is manufactured to stringent dimensional and material standards to deliver precise fitment, consistent sealing performance, and long service life. Whether supporting naturally aspirated builds, high-boost turbo systems, endurance applications, or extreme horsepower race programs, GSC valves are engineered to handle conditions where lesser components reach their limits.

Frequently Asked Questions

What materials are GSC valves made from?

Depending on the application, GSC valves are manufactured from premium stainless steel or high-temperature super alloys designed to withstand extreme heat and cylinder pressures.

When should I upgrade to super alloy exhaust valves?

Super alloy exhaust valves are recommended for turbocharged, supercharged, nitrous, endurance racing, and other extreme applications where exhaust temperatures are elevated.

Are GSC valves compatible with OEM valve locks and retainers?

Many applications are designed to work with OEM-style locks and retainers, but compatibility should always be verified prior to installation.

GENERAL F.A.Q

Many GSC products, including our camshafts, are designed, machined, and finished in-house at our facility in South Carolina, USA. We maintain strict quality control throughout the manufacturing process.

GSC Power-Division has been serving the performance automotive industry for over 20 years, supplying racers, engine builders, tuners, and enthusiasts worldwide.

Yes. We sell directly through our website and also through an extensive network of authorized dealers and distributors worldwide.

GSC’s warranty covers defects in the product itself. Consequential damages, including engine damage, labor, towing, or vehicle downtime, are not covered.

Products used in racing or competition environments are subject to conditions outlined in our warranty policy. Performance applications inherently involve risks beyond normal operating conditions.