Supertech Honda K20 Exhaust Valve Guide 6.6mm Stem – Set of 8

SKU: GDE-HM66-E-8 / UPC: 1037721244543

Supertech Honda K20 Exhaust Valve Guide 6.6mm Stem – Set of 8

The Supertech set, designed specifically for exhaust applications. Crafted from high-quality manganese bronze, these valve guides ensure a precise fit and consistent valve stem alignment under high-rev conditions, reducing wear and supporting sustained power output. This set stands out for its ability to handle extreme temperatures and pressures better than stock guides, providing the reliability demanded in both street and track environments. With a focus on direct compatibility and long-term durability, it serves as the direct path to improved engine efficiency for K20 owners seeking dependable results.

Key Specifications

• Material: Manganese bronze for heat dissipation and strength
• Stem Diameter: 6.6mm (exhaust-specific)
• Quantity: 8 guides (complete set for one cylinder head)
• Part Number: GDE-HM66-E-8
• UPC: 1037721244543

What’s Included in the Purchase

Your order arrives as a complete kit containing:

• 8 precision-machined exhaust valve guides (6.6mm stem)
• Protective packaging to prevent damage during transit No additional hardware or tools required install directly into your K20 head after proper machining if needed.

Vehicle Fitment Details

These guides fit Honda K20 engines across a range of performance models, ensuring seamless integration:

Always confirm your engine code and head specifications before installation. Professional machining recommended for optimal seating.

Installation and Performance Notes

Pair these guides with Supertech’s nitrided exhaust valves for friction reduction and extended service life. Users report smoother valve operation and fewer failures during aggressive driving, backed by the brand’s reputation in motorsport circles. Shipping weight and box dimensions are not specified by the manufacturer, but the compact set typically measures under 6x4x2 inches for easy handling.