Left Side Panhead Engine Case

Left side engine case features a blank number boss. Left hand case must be fit to existing right side case. Number boss is blank. Will accept Timken roller bearing assembly not included. Cylinder dock height must be machined to match to original right side case. Cylinder base studs breather tube bearing assembly and drain plug all must be purchased separately. Case set required line lapping of the main case races. Order case race available separately. 1955-1964 FL