The Kelford KVS38‑BT valve spring kit is designed specifically for the Nissan GT‑R R35 VR38DETT engine and engineered to work seamlessly with Kelford camshafts. This kit features progressively wound Pacaloy™ beehive valve springs paired with lightweight titanium retainers to provide improved valve control, reliability, and stability in high‑performance and high‑RPM applications.

Optimised for both intake and exhaust valvetrain requirements, the KVS38‑BT kit offers balanced spring pressures to support aggressive cam profiles while maintaining durability for street, track, and competition use.

Kit Features

• Designed for Nissan GT‑R R35 with VR38DETT engine
• Progressively wound Pacaloy™ beehive valve springs
• Lightweight titanium valve spring retainers included
• Engineered to match Kelford camshaft profiles
• Improves valve control and stability at higher RPM

Spring Specifications

• Intake: 36.75mm installed height, 80 lb closed pressure, 180 lb at 11mm lift, 24mm coil bind height
• Exhaust: 33.75mm installed height, 80 lb closed pressure, 180 lb at 11mm lift, 21mm coil bind height

Package Contents:

• 24 × Kelford Cams Pacaloy™ Beehive Valve spring
• 24 × Kelford Cams Titanium Retainer