
?
? Professionally Built Engines Only 298¡ã/292¡ã | 10.40mm/10.80mm Valve Lift 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