STK Performance Racing Dual Valve Spring Kit + 6mm Chromoly Retainers + Locators + Valve Set BMW M54

Product Overview

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Engineered for reliable high-RPM operation and motorsport applications. Eliminates valve float and maintains precise valve timing under extreme conditions.

What's Included

• 24 × Inner Valve Springs
• 24 × Outer Valve Springs
• 24 × 6mm Chromoly Retainers
• 24 × Inner Valve Spring Locators
• 24 × Forged 21-4N Stainless Valves

Technical Specifications

Seating Pressure @ 37mm = 95lbs Full Lift Pressure = 240lbs

Material Specifications

Valve Springs: Premium Chrome Silicon (CrSi) - Shot peened and heat treated for superior fatigue resistance Retainers: 4130 Chromoly - Reduces inertia while ensuring long-term durability Performance Rating: 8500 RPM capability Lift Capacity: Up to 14mm camshaft lift

Application

Complete valve train upgrade for BMW M54 24-valve engines. Compatible with high-lift camshafts and performance builds.

Installation Notes

Professional installation recommended. Verify spring heights and valve travel to avoid coil bind.