Supertech Performance GDE-HK55-I Magnesium Bronze Valve Guide

The Supertech Performance GDE-HK55-I is a precision-machined valve guide engineered for high-performance and motorsport engine applications. Manufactured from premium Magnesium Bronze alloy, this valve guide offers superior thermal conductivity, wear resistance, and dimensional stability compared to standard cast-iron OEM guides — making it the ideal upgrade for performance builds and engine rebuilds.

When paired with Supertech's low-friction nitrated valves, the GDE-HK55-I delivers an optimized valve train solution that reduces heat buildup, minimizes wear, and extends the service life of both the guide and valve stem. Magnesium Bronze material is a preferred choice in racing and high-output applications due to its excellent lubricity and ability to withstand elevated cylinder head temperatures.

Key Features:

• Precision-machined from high-quality Magnesium Bronze alloy for superior wear resistance
• Excellent thermal conductivity helps dissipate heat away from the valve stem
• Compatible with Supertech low-friction nitrated valves for maximum performance and longevity
• Tight manufacturing tolerances ensure proper valve stem clearance and sealing
• Ideal for performance engine builds, engine rebuilds, and motorsport applications
• Sold individually (per valve guide) — order the quantity equal to the number of guides required for your application

Note: This valve guide is sold per piece. For example, if your engine requires 16 valve guides, please order a quantity of 16.