Dynosty Pro-Seal MLS Stopper Head Gasket – Nissan 370Z / 350Z VQ35HR VQ37VHR (HG-VQ37.96)
Maximum Sealing for High-Output VQ35HR and VQ37VHR Engines.
The Dynosty Pro-Seal MLS Stopper Head Gasket is an essential upgrade for any high-horsepower Nissan 370Z or 350Z HR build. Specifically designed for the HR and VHR block architecture, this multi-layer steel gasket incorporates a stopper ring to provide a secondary mechanical seal at the cylinder bore. This technology significantly increases the gasket's resistance to "lifting" under high boost pressures, making it the preferred choice for turbocharged and supercharged VQ engines.
- Product: Pro-Seal MLS Stopper Head Gaskets
- Fitment: Nissan 370Z (VQ37VHR) / 350Z (VQ35HR) / G37 / Q50
- Bore Size: 96.00mm (Supports stock and .020" overbore)
- Condition: Brand New / Dynosty Manufactured
- Part Number: HG-VQ37.96
⚠️ COMPATIBILITY NOTE
This gasket set is designed specifically for the dual-throttle VQ35HR and VQ37VHR engines found in the 2007-2008 350Z and all 370Z models. It is not compatible with the early VQ35DE single-throttle engine. Professional ECU calibration is mandatory following engine assembly to protect your investment.
Key Features:
- Stopper Ring Advantage: Provides a concentrated clamping force around the cylinder opening to handle high combustion pressures.
- Enhanced MLS Construction: Multiple layers of high-grade stainless steel provide superior thermal conductivity and recovery.
- Precision Volume: 0.78mm compressed thickness and 5.64cc volume, maintaining consistent compression ratios.
- Proven Performance: Tested and validated in our own 1000+ HP project cars for street and track use.
What is Included:
- (2) Dynosty Pro-Seal MLS Stopper Head Gaskets (Left & Right Side)