Motorshop Harley EL Left Side Engine Case 1936-40 Kit

Knucklehead left side engine case, sand cast as original number boss is blank. The case has updated design to accept 1940-1954 case bushing. This Motorshop left side engine case, part number 10-0825, is designed to fit Harley Davidson EL models from 1936 through 1940. Crafted in Taiwan, this case features a robust construction suitable for vintage engine restoration and rebuild projects. The case is specifically designed to accept 61-inch flywheels and includes cast-in baffles at the cylinder base area for enhanced engine performance.

Installation requires machining and alignment to ensure a proper fit with your existing or custom-built engine. Deck height milling and possible welding may be necessary for fitment. Proper fitting might involve additional material on motor mount surfaces and careful alignment to achieve optimal performance.

• Harley Davidson EL fitment: 1936, 1937, 1938, 1939, 1940
• Accepts 61-inch flywheels for authentic rebuilds
• Cast-in baffles at cylinder base area for improved performance
• Designed to accept 1940-1954 case bushing
• Two lugs (5/16 inch wide x 2-1/4 inches long) for 1936–1940 authenticity
• Compatible with short rib cases used 1936 through mid-1961; suitable for high rib models 1941–1947 for added strength with 74 cu in engines
• Line lapping of main case races required (sold separately)
• Not a bolt-on component; requires machining and precise alignment
• Made in Taiwan

Knucklehead left side engine case is sand cast as original number boss is blank. The case has updated design to accept 1940-1954 case bushing.

This Motorshop left side engine case, part number 10-0825, is designed to fit Harley Davidson EL models from 1936 through 1940. Crafted in Taiwan, this case features a robust construction suitable for vintage engine restoration and rebuild projects. The case is specifically designed to accept 61-inch flywheels and includes cast-in baffles at the cylinder base area for enhanced engine performance. The case requires precise machining, including deck height milling and possible welding, to ensure a proper fit on your existing or custom-built engine setup. Proper fitting might involve additional material on motor mount surfaces and careful alignment to achieve optimal performance.

This case features two lugs, matching the 1936-1940 models, with a width of 5/16 inch and a length of 2-1/4 inches, ensuring authentic restoration or replacement. The design is compatible with short rib cases used from 1936 to mid-1961, with specific notes on the high rib models used from 1941 to 1947 for added strength suitable for 74 cubic inch engines. The case set requires line lapping of main case races, which are sold separately, to achieve a smooth, durable fit.

Please note that this is not a bolt-on component; installation demands technical expertise, including machining and alignment. It is vital to match the case to your existing engine case for a seamless fit and reliable operation. The case's construction and features make it an excellent choice for vintage Harley Davidson restorations or custom builds aiming for authentic parts with precise fit and durability.

Features:

• Designed for Harley Davidson EL models from 1936 to 1940

• Cast-in baffles at cylinder base area for improved engine performance

• Accepts 61-inch flywheels for authentic rebuilds

• Requires machining such as deck height milling and possible welding for fitment

• s two lugs matching 1936-1940 models for authenticity

• Compatible with short rib case designs used from 1936 through mid-1961

• Suitable for high rib models from 1941 to 1947 for added strength

• Requires line lapping of main case races (sold separately) for proper assembly

Fitment:
Harley Davidson EL 1936
Harley Davidson EL 1937
Harley Davidson EL 1938
Harley Davidson EL 1939
Harley Davidson EL 1940