Knucklehead Engine Case Set
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 inch to accept standard rollers. Use 2 gaskets when mounting the oil pump body for proper clearance. **NOTE: Numeral inch7 inch 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.
FITS
Harley Davidson EL 1937
Harley Davidson EL 1938
Harley Davidson EL 1939
Harley Davidson EL 1940
Harley Davidson EL 1941
Harley Davidson EL 1942
Harley Davidson EL 1943
Harley Davidson EL 1944
Harley Davidson EL 1945
Harley Davidson EL 1946
Harley Davidson EL 1947
Harley Davidson FL 1941
Harley Davidson FL 1942
Harley Davidson FL 1943
Harley Davidson FL 1944
Harley Davidson FL 1945
Harley Davidson FL 1946
Harley Davidson FL 1947
OCPPARTSWAREHOUSE is not responsible for late deliveries outside of our control. Severe weather, carrier issues, pandemics, natural disasters, etc.
Orders over $75.00 qualify for free shipping.
Orders under $75.00pay a flat shipping rate of $10.95 Offer only applies to 48 contiguous states. Hazardous Materials ship UPS Ground only.
Orders that contain backorders, the order will be held until all parts are in. A customer representative will reach out to you if this is the case. At that time a decision can be made whether or not to split the order.
Alaska orders will be charged a flat $35 charge and will be shipped Post Office Priority Mail. We do not ship Oversized mail to Alaska.
Hawaii orders will be charged a flat $35 charge and will be shipped Post Office Priority Mail. We do not ship Oversized mail to Hawaii.
Puerto Rico orders will be charged a flat $35 charge and will be shipped Post Office Priority Mail. We do not ship Oversized mail to Puerto Rico.










