Supertech Performance GDE-FIA2500 Manganese Bronze Valve Guide Intake & Exhaust

The Supertech Performance GDE-FIA2500 is a precision-machined Manganese Bronze valve guide designed for both intake and exhaust positions. Featuring an 11.05mm outer diameter and 5.98mm inner diameter, these guides are engineered to exact tolerances for a reliable, leak-free fit during engine assembly or rebuilds.

Key Features:

• Material: High-quality Manganese Bronze construction for excellent wear resistance and thermal performance
• Dimensions: 11.05mm OD / 5.98mm ID — precision-machined to strict dimensional tolerances
• Application: Fits both intake and exhaust positions (dual-purpose guide)
• Compatibility: Designed for the Ferrari 355 and 360 V8 40-valve engines
• Paired Performance: Optimized for use with Supertech low-friction black nitrided valves for maximum durability and reduced stem wear
• Thermal Performance: Manganese Bronze offers excellent heat dissipation; copper alloy exhaust guides are available separately for high-powered applications requiring superior thermal transfer
• Sold individually — order the quantity equal to the number of guides required for your engine build

Supertech valve guides are the preferred choice of professional engine builders seeking OEM-quality fit with enhanced performance characteristics. When paired with Supertech's black nitrided valves, the combination delivers reduced friction, improved sealing, and long-term durability under demanding conditions.