- 90lb seat pressure at 41.2mm, 225lb at 11.00mm lift. Maximum lift 15.00mm
83lb at 30.40mm installed height. 10.50mm max lift.
Nissan RB20DET / RB25DET Engine Valve Springs
Pre-NVCS. 85lb seat pressure @ 36.0mm install height.
102lb seat pressure at 39.8mm installed height. 293lb at 13.7mm valve lift.
Drop-in PACALOY high-performance single valve spring set. Use with OEM retainers and spring base.
80lb seat pressure at 39.10mm installed height. Coil bind at 24.00mm.
NISSAN VK56DE-(T) Valve Spring Set