Kelford valve springs, Nissan RB25DET NVCS Single
Valve spring set for Nissan RB25DET NVCS engines.
Technical specifications
| Part number | KVS25R |
|---|---|
| Engine | Nissan RB25DET NVCS |
| Spring design | single springs |
| Seat load | Intake: 83 lb / 30.40 mm installed height Exhaust: 80 lb / 30.65 mm installed height |
| Open load | Not stated, ask for more information. |
| Coil-bind height | Not stated, ask for more information. |
| Maximum stated valve lift | 10.50 mm |
Installation and use
Includes 24 springs and 12 exhaust-side spring seats to equalise installed heights.
Engine and vehicle examples
Nissan Skyline R33 2.5 Turbo
Nissan Stagea 2.5 Turbo, pre-NEO engine
Examples refer to models using the stated engine. Check the engine code, cylinder-head version and actual valvetrain assembly before ordering.
Suomi

