NISSAN RB20DET RB25DET. Fits early heads without NVCS. High performance PACALOY single valve spring and Titanium retainer kit. Use OEM spring base. 85lb seat pressure at 36.00mm install height. Coil bind at 22.00mm.
The Titanium retainer is a lightweight version of the OEM part, sharing the same key dimensions. The Titanium retainer is over 40% lighter retainer than the steel OEM retainer.
Kit contains: 24 valve springs and 24 Titanium retainers.
