{"product_id":"left-side-engine-case","title":"Left Side Engine Case","description":"\u003cp\u003eKnucklehead left side engine case is sand cast as original  number boss is blank. The case has updated design to accept 1940-1954 case bushing.\n\u003cbr\u003eThe serial number pad is 5\/16 inch wide and 2-1\/4 inch long  and the 1936-42 pads features two lugs on the pad as on 1936-1940 models. Case must be fit to builder's right hand case. Fitting the case to your existing case may require machining and\/or adding material on motor mount surfaces  beside the deck height of the cylinder spigot area. This is not a  inchbolt on  inch component. Deck height must be milled to fit. Accepts 61 inch flywheels. Case set required line lapping of the main case races. Order case race available separately. Baffles cast in at cylinder base area. *NOTE: Left side cases accept standard case race.    **NOTE: Short rib case used 1936 - mid 1961. Last 1941 production thru 1947 have the high rib  for the added strength needed for 74 cubic inch. *NOTE: It is important to match case to the existing case. It will require machine work and possible welding of addtional material for final fitting  experience reqired!. Not a bolt on installation.\u003c\/p\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1936 Harley Davidson EL\u003cbr\u003e\n1937 Harley Davidson EL\u003cbr\u003e\n1938 Harley Davidson EL\u003cbr\u003e\n1939 Harley Davidson EL\u003cbr\u003e\n1940 Harley Davidson EL","brand":"Motorshop","offers":[{"title":"Default Title","offer_id":55915308908712,"sku":"10-0825","price":1887.95,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/8273\/6552\/files\/10-0825a.jpg?v=1787802606","url":"https:\/\/speedguyscanada.com\/products\/left-side-engine-case","provider":"THE SPEED GUYS CANADA ","version":"1.0","type":"link"}