HRB Valve Train Organiser TrayIntroducing the HRB SR Floating Valve Train Organiser Tray purpose built to keep your valve train components in order throughout the engine build process. Designed specifically for the NISSAN SR engine, this tray helps you maintain complete control over the organisation and handling of critical parts like springs, rockers, lifters, and shims from disassembly through to final reassembly. SR Valve Organizer holds in order: Springs Max OD 31. 5mm Rockers