- OD: 10.02mm. ID: 5.95mm. Set of 16
Bronze Manganese Valve Guide Set of 8.
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.