Nissan RB20DET RB25DET Race Spring Set KVS20
Pre-NVCS. 85lb seat pressure at 36.00mm install height. Coil bind at 22.00mm. - NISSAN RB20DET RB25DET. Fits early heads without NVCS. High performance PACALOY single valve spring set to suit OEM retainers and spring base. . 85lb seat pressure at 36.00mm install height. Coil bind at 22.00mm.