Supertech BMW M20 Dual Valve Spring Kit

This is the Supertech dual valve spring kit specifically for BMW M20 engines. If you're rebuilding the top end of your M20, these springs are a solid choice for handling increased camshaft lift and duration, especially if you're aiming for more performance. They're designed to work with stock retainers and seats, making the installation process more straightforward.

Supertech uses high-grade spring wire that's heat-treated and shot-peened to ensure durability and consistent performance under stress. This process helps the springs resist fatigue and maintain their intended tension over time, which is crucial for proper valve control at higher RPMs. The dual spring design offers increased seat pressure and open pressure compared to single springs, providing better valve control and reducing the risk of valve float when you're pushing the engine hard. This kit is a well-built component that's a popular upgrade for M20 enthusiasts looking to get the most out of their engine.

When installing these, it's important to ensure your camshaft specifications are compatible with the spring's pressure ratings. Always refer to the manufacturer's installation instructions for precise details on seat pressure and open pressure requirements to ensure optimal performance and longevity of your engine build. This kit is a key part of a performance engine build for the BMW M20.