Manley Valve Spring, SPRING-1424 POLISHED

What you get in this box are 16 Manley Performance valve springs, part number 221424P-16. These are designed for high-performance engine builds where the stock springs just won't cut it. They are polished for a smoother surface finish, which can help reduce stress risers and improve fatigue life. This is a critical component when you're looking to get the most out of your engine, especially if you're running a more aggressive camshaft or increasing the engine's RPM range.

Manley is known for making well-built internal engine components, and these springs are no exception. They are made from a high-strength spring steel that's designed to handle the demands of repeated opening and closing cycles at higher engine speeds. The polishing process isn't just for looks; it creates a cleaner surface that's less prone to cracking under stress. This attention to detail is important for reliability when you're pushing your engine hard. You'll want to make sure you have the correct spring seat pressure and installed height for your specific camshaft and cylinder head combination to ensure these springs perform as intended.

When you're building an engine that needs to perform, the details matter. These Manley valve springs are a solid choice for enthusiasts looking for dependable components. Make sure to consult your camshaft manufacturer's specifications to confirm the proper spring requirements for your build. This set includes 16 springs, which is typically enough for a V8 engine, but always double-check your application.