Supertech Performance GDE-MIN-R56-OS-8 Oversize Valve Guide Set Mini Cooper R56 N14 (8-Pack)

Supertech Performance oversize valve guides are precision-engineered replacement components designed for Mini Cooper R56 N14 engine cylinder head rebuilds. This set includes 8 oversize valve guides for both intake and exhaust applications, manufactured from high-quality manganese bronze material for superior durability and heat dissipation.

Key Features:

• Precision-machined from manganese bronze for optimal performance and longevity
• Oversize design for worn cylinder heads requiring machine work
• Compatible with Mini Cooper R56 N14 turbocharged engines
• Works with both intake and exhaust valve positions
• Designed to pair with low-friction nitrided valves for maximum efficiency
• 44.9mm length specification

These oversize valve guides are ideal for engine rebuilds where the original guide bores have become worn or damaged beyond standard replacement specifications. Manganese bronze construction provides excellent wear resistance and thermal properties, ensuring consistent valve stem clearances even under high-performance conditions. Professional installation and machine work required to properly size cylinder head guide bores for oversize fitment.