Crower 68921-16 Features:

Crower spring seat cups for LS1 engines, part number 68921-16, set of 16. Built for high-performance valve train applications in LS engine builds. Fits LS1 valve spring setups and supports spring location at the cylinder head. Part of Crower premium valve train and valve spring accessories product line.

Spring Seat Cups For LS1 Set Of 16 High-performance Features:

• Set of 16 spring seat cups for LS1 valve springs, built for high-performance valve train applications and consistent spring seating in LS engine builds
• Premium valve spring accessory for LS1 engines, supporting reliable valve train setup, durability, and performance in demanding street or racing use
• Crower LS1 spring seat cup design helps provide stable spring positioning, making it a smart fit for performance-oriented engine assembly and upgrades
• Ideal for LS engine builds requiring dedicated spring seat hardware, with application-specific fitment for LS1 spring configurations and repeatable installation
• Purpose-built valve train component engineered for durability and performance, helping support long-term spring control in high-output LS1 applications