Knucklehead Engine Case Set

2023 New Production motor case set features a blank number boss, there are no serial numbers on the case. Sold with Bill of Sale only. Includes the welch plug, and the right and left case races installed as original!
Oil from top end returns through pushrod tubes. Does not return through cylinder base. Case accepts loose roller bearings on the sprocket and pinion shaft side. Case set required line lapping of the main case races. Case set is designed for replacement of the original cases. Case sets do not include pinion and sprocket shaft races. *NOTE: Case races should be line bored to 1.500" to accept standard rollers. Use 2 gaskets when mounting the oil pump body for proper clearance. **NOTE: Numeral "7" stamped on rear motor mount halves, to denote 74 cubic inch. Builder may stamp these numbers in. *NOTE: Must order the following required components separately: cam, distributor gear, breather gear, pump and bushing.