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SKU: GDE-MIN-R56-OS-8
Supertech Mini Cooper R56 N14 S 44.9mm Intake/Exhaust Valve Guides - Set of 8 2007-2011
Supertech 44.9mm intake and exhaust valve guides fit Mini Cooper R56 models with N14 engines from 2007 to 2011. This set of 8 replaces worn guides in performance builds for better valve sealing and longevity. Engineered for direct replacement with precise dimensions to maintain OEM tolerances under high boost.
Key Features
- Bronze Alloy Material: Manganese bronze construction provides superior wear resistance and thermal conductivity to handle turbocharged heat loads in N14 engines
- 44.9mm Length: Exact length matches factory specs for proper valve stem support and oil control in intake and exhaust positions
- Precision Machining: Ground to micron tolerances for interference press fit ensuring zero movement during high RPM operation
- Oversize Design (OS): Accommodates aftermarket oversized valves while restoring head integrity after guide removal
- Set of 8: Complete coverage for all 16 valves (4 intake 4 exhaust per bank) simplifying full valvetrain refresh
Product Notes
- Inspect cylinder head for wear before installation and machine as needed for oversize guides
- Clean guides thoroughly before pressing to avoid contamination
- Packaged in protective tube to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Requires valve guide puller and press driver tool for removal and insertion
- Compatible with stock or ported N14 cylinder heads no additional hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2010 | MINI | Cooper S | R56 N14 |
| 2008-2011 | MINI | Cooper S Clubman | R55 N14 |
| 2008-2011 | MINI | Cooper S Convertible | R57 N14 |
| 2009-2011 | MINI | Cooper S JCW | R56 N14 |
Why Choose Supertech?
- Developed for racing applications in WRC and endurance series
- High-strength bronze alloy proven in turbocharged engines
- Machined in Italy with tight tolerances for repeatable performance
Frequently Asked Questions
- Q: Will these fit 2011 N14 engines in R56 Cooper S?
- A: Yes fits all 2007-2011 MINI R56 R55 R57 with N14B16 turbo engine including JCW variants
- Q: What material are the guides made from?
- A: Manganese bronze alloy for maximum durability heat transfer and resistance to galling on valve stems
- Q: Do these require head machining?
- A: Oversize guides need head boring to 13.55mm OD confirm with machine shop using Supertech specs
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective plastic tube inside 6 x 4 x 1 inch box
- Weight: 0.4 lbs
Supertech
Located in San Jose, California, in the heart of Silicon Valley, Supertech was born from the same fertile ground as many other innovative companies. We utilize cutting-edge technology to fuel our growth and deliver the highest performance valves and valve train components available. Why Choose Supertech? Over 30 Years of Experience: Our legacy in the industry ensures top-quality products. Superior Performance: We provide valves and valve train components specifically designed for the racing market. Versatile Applications: Ideal for various types of racing, including: Drag Racing Rally Road Racing And more! Custom Solutions: If you can't find the perfect fit, we are always willing to work with you to custom manufacture the ideal solution for your specific needs. CUTTING EDGE TECHNOLOGY Trusted by the best in the industry, Supertech is committed to leveraging the latest advancements in technology to enhance performance and reliability. Experience the difference with our prod...
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