Kelford valve springs + retainers, BMW B58 / S58 3.0 Turbo Extreme Beehive
Valve springs and titanium retainers for BMW B58 / S58 3.0 Turbo engines. Designed for high-rpm, high-boost racing engines.
Technical specifications
| Part number | KVS58-BTX |
|---|---|
| Engine | BMW B58 / S58 3.0 Turbo |
| Spring design | Beehive |
| Spring material | PACALOY |
| Retainers | Titanium, included |
| Seat load | 105 lb / 35 mm installed height |
| Open load | 210 lb / 10.8 mm valve lift |
| Coil-bind height | 23.6 mm |
| Maximum stated valve lift | Not stated, ask for more information. |
Installation and use
For high-boost race engines. The manufacturer specifies applications exceeding 1,000 hp. Machined spring seats are included.
Engine and vehicle examples
Toyota GR Supra A90 / A91 3.0, B58
BMW M3 G80 / G81, S58
BMW M4 G82 / G83, S58
Examples refer to models using the stated engine. Check the engine code, cylinder-head version and actual valvetrain assembly before ordering.
Suomi

