Kelford Cams BMW M Series Stage 3 drag racing cams designed for professionally built S58 engines producing 1400hp+. Turbo sizing 76mm+ on high boost. Ethanol blend or methanol.
- Valve Spring Upgrade is required,Kelford Cams recommend valve spring KVS58-BT.
- Please check intake intermediate rockers for clearance to the new racing cam lobe, OEM pressed steel rockers have sharp edges which may foul on the bigger cam lobe.
- Trim/deburr as necessary