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Genuine Kelford Cams valve springs for the B58. Performance camshafts and valvetrain made in New Zealand.
| Item | Part No. | Details |
|---|---|---|
| BMW Gen1 with | KVS57-BT | 90lb seat pressure at 36.5mm installed height. 193lb at 11.0mm valve lift. Spring coil bind height at 23.6mm. |
