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Supertech BMW S54 Valve Kit - 24 pieces E46 M3 Z3M Z4M
Supertech BMW S54 Valve Kit - 24 pieces E46 M3 Z3M Z4M


SKU: 11-SUP-VK-S54

Groove Style:

Valve Diameter:


Product Details
We have been using Supertech valves in our race program for many years. We even use them in our Endurance Engines for the 25 Hours of Thunderhill and they performed flawlessly. We believe they are some of the Best on the market at any price.

Supertech Valves are manufactured using the highest quality materials available. Intake valves are manufactured exclusivly from and enhanced version of EV8(21-4N) Steel. This is the highest grade of Steel available and provides the strenght to withstand just about any application. The exhaust valves are manufactured from EV18(21-8N) or EV8Nb/w for greater strenght at higher temperatures. For Engines producing 120+ HP per liter or Supercharged/Turbo we recommend valves manufactured from Inconel 751/Nimonic 80A. These valves will withstand even the highest of combustion temperatures.

About Supertech Racing Valves
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 they go through another heat treatment for stress relieving followed by a nitride hardening treatment (or coating process depending on the application). Lastly, one more grinding, followed by Supertech's patented Superfinishing of the surface to ensure that each valve is free of any imperfections and the dimensions are precise.
Complete Set of 24 Valves 12 Stainless Steel Intake valves 12 Inconel Exhaust Valves
Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1

Available Accessories
Supertech BMW Hardened Valve Lock Keeper Single Groove - Set of 48

Supertech BMW Hardened Valve Lock Keeper Single Groove - Set of 48

  0 of 0 people found the following review helpful:
5 of 5 Great kit and customer service July 27, 2019
Reviewer: michael schiappa from Cranston, RI United States  
While piecing together internals for a forced induction build, Achilles staff went out of their way to provide great knowledge and experience to aid me in getting the very best parts for my application. I will without a doubt be shopping with them for the remainder of my build.

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