{"product_id":"1936-el-cylinder-head-set-bare","title":"1936 EL Cylinder Head Set Bare","description":"\u003cp\u003eBare Knucklehead cylinder head set features a cast iron construction with factory casting marks. This is the exact replica of the 1936 EL models  for 61 inch motors. Features a black painted finish. Accepts the  inchBaby Butt inch manifold.\n\u003cbr\u003e1936 head set is the small port type exclusive to 1936 only. Bare heads include valve seats installed. For use with early rocker shafts. *NOTE: Valves  nuts  round end caps  springs  brass primer cups and 18mm spark plugs are not included  must order separately. *NOTE: Reproduced in Germany by Alez at Motortechnic. Uses 1-3\/8 inch large hex 18mm plugs. *NOTE: Accepts large 1-3\/8 inch hex Doering #3 spark plug set. *NOTE: Material of valve seats features a better hardenability and heat resistance than 1.2713. Material is tough with high compressive strength and high tempering resistance. Hardness equals 370-415 HB. Tensile strength equals 1250-1400 N\/mn2. Condition is tempered. \n\u003cbr\u003e Tech Notes: Required to use with #49-0009 Brass Head Primer Cups. Required to use with #49-0878 18mm Doering Spark Plug Set. Required to use with #49-1301 Knucklehead Rocker Box Set. Required to use with #11-0897 1936 EL Pushrod Cover Kit. Required to use with #16-0001 Rocker Arm Shaft Adjusting Tool. Suggested to use with #49-0878 18mm Doering Spark Plug Set. \n\u003cbr\u003e Instructions: http:\/\/www.vtwinmfg.com\/Instructions\/49\/49-1348.pdf\u003c\/p\u003e","brand":"Motortechnic","offers":[{"title":"Default Title","offer_id":67611536785593,"sku":"49-1348","price":10320.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.thespeedshopusa.com\/fr\/products\/1936-el-cylinder-head-set-bare","provider":"THE SPEED SHOP USA","version":"1.0","type":"link"}