Running a V-Mount kit or 20B engine conversion in your FD3S RX-7?
This redesigned Vinny Fab Upper Water Neck provides the extra clearance your setup needs — no compromises.
Manufactured from our Vinny Fab 12 mm CNC-machined stainless flange, this piece offers precise fitment, strength, and reliability. It’s been engineered to clear larger pulleys and deliver improved functionality for custom or high-performance builds.
Features & Benefits
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⚙️ V-Mount / 20B Clearance Design: Provides additional space for modified cooling layouts.
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🧱 12 mm Vinny Fab CNC Flange: Machined in-house for perfect sealing and durability.
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💧 Dual Sensor Ports: Includes provisions for water-level sensor and 1/8 NPT sensor.
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🔩 Large Flow Capability: 16 AN fitting and 38 mm tube for high-volume coolant flow.
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🎨 Finish Options: Raw / Brushed, Polished, or Satin Black.
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⚠️ Compatibility: Fits with large water-pump pulleys; not for twin-turbo setups.
Perfect for anyone upgrading to a 20B or running a V-Mount intercooler system who needs dependable cooling and proper clearance.