Supertech Performance GDE-MI66-E Magnesium Bronze Valve Guide

Supertech Performance GDE-MI66-E valve guides are precision-machined from high-quality Magnesium Bronze, a material chosen for its superior thermal conductivity, wear resistance, and dimensional stability under high-performance engine conditions. Magnesium Bronze guides offer excellent compatibility with both OEM-style and performance-ground valves, making them a trusted upgrade for race and street builds alike.

When paired with low-friction nitrated valves, these guides deliver an optimized sealing surface that reduces stem wear and promotes consistent valve seating — critical for maintaining compression, maximizing power output, and extending engine longevity.

Key Features:

• Precision-machined from high-grade Magnesium Bronze for superior wear resistance and heat dissipation
• Excellent dimensional tolerance for accurate valve-to-guide clearance
• Compatible with low-friction nitrated valves for best performance results
• Designed for high-performance and competition engine applications
• Sold individually (per valve guide) — order the exact quantity required for your application

Note: Supertech valve guides are sold per piece. Please order the correct quantity to match your engine's valve count (e.g., quantity of 16 for a 16-valve engine).