Supertech Intake Valves | Set of 8 | N14 MINI Cooper

Stainless Steel Black Nitrated Intake Valves by Supertech

Set of 8 black nitrated 28.8mm standard diameter. (+1.0mm oversize available)

Fits 2007-2010 N14 Prince Engine

Production of Supertech racing valves begins with a one piece forging, where the head of the valve is forged under a slow two step process to keep a good material grain flow. The forging is then CNC machined in several steps to ensure the precision of the final dimensions. Then another heat treatment for stress relieving followed by a nitride hardening treatment (or coating process depending on the application). Lastly, more grinding, followed by our patented Superfinishing of the surface to ensure that each valve is free of any imperfections and the dimensions are precise.

Requires Supertech Keepers pn 56-595111.

Works with stock spring retainers