Supertech Titanium Retainer for Nissan SR20 / SPR-H1020 Series 6mm Valve Stems - Set of 16

This is a set of 16 Supertech titanium retainers, specifically made for Nissan SR20 engines that use 6mm valve stems. These retainers work with the SPR-H1020 series valve springs. They are a critical component for the valvetrain, working with the valve springs to keep everything sealed and operating smoothly under high RPMs.

Titanium is a strong, lightweight material, and using it for retainers helps reduce the overall mass in the valvetrain. Less mass means the valvetrain can operate more reliably at higher engine speeds, which is important for performance builds. These retainers are well-built and designed to handle the stresses of performance engine operation. They are a direct replacement for the stock retainers, making installation straightforward if you're already rebuilding the cylinder head.