Engine Case Set For Harley-Davidson Knucklehead 1941-1947

Engine Case Set For Harley-Davidson Knucklehead

• Motor case set features a blank number boss, there are no serial numbers on the case
• 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 (order case race available separately)
• Case set is designed for replacement of the original cases
• No serial numbers are provided with these case sets
• Case sets do not include pinion and sprocket shaft races
• 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
• Numeral "7" stamped on rear motor mount halves, to denote 74 cubic inch. Builder may stamp these numbers in. 
• Fits:
• FL 1941-1947
• EL 1937-1947