1.677 Spring Cups

The Manley 1.677 Spring Cups are precision valve spring locators designed for high-performance engine builds and OEM-level valve train assembly. These outside-mounted spring cups are essential for engine builders and performance shops, providing the necessary support for valve springs during assembly.

Manufactured from hardened steel with a black oxide finish, these spring cups offer corrosion resistance and durability in demanding environments. They feature a spring OD capacity of 1.677 inches, with a thickness of 0.062 inches, ensuring proper fit and function across various valve spring configurations.

These spring cups are vital for serious enthusiasts working with custom and race engines, where valve train geometry and spring seating directly impact reliability and power output. Proper selection and application of these spring cups prevent installation errors that could lead to engine failure.