Ultraflow Valve Guides Set MINI R53 | R52 | R50 | Cooper | Cooper S | JCW

New set ultraflow valve guides.

This set includes 16 pieces, enough for a complete cylinder head.

These valve guides are made from a special manganese bronze alloy designed to withstand extreme conditions and offer:
– Improved heat transfer from the valve stem to the cylinder head, helping to keep the valves cooler.
– Self-lubricating and extremely hard, which reduces guide wear.
– Conically shaped to provide optimal airflow while still offering excellent valve support.
– In the event of engine failure, they bend rather than crack or break, preventing broken pieces from entering the cylinder.

NOTE: Comes with 8 exhaust valve guides and 8 conically shaped intake valve guides.

4Revision Engines parts are sourced from trusted OEM suppliers to guarantee top-tier quality and long-lasting durability. OEM-quality, engineered for maximum reliability for both everyday use and high-performance applications – all at competitive prices.