Bare 1938-1939 EL Knucklehead Cylinder Head Set

1938-1939 EL bare Knucklehead cylinder head set features exact casting marks and details for 1938 61 inch Knucklehead models.
Features a small intake port. The valve spring cover is not included. *NOTE: Accepts cup valve cover primer caps and large 18mm air cooled spark plugs all items available separately. *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.

Fits:
EL 1938-1939

UOM: SET
Country Of Origin: GERMANY

Accessory Items:
11-0904 - 61 inch Pushrod Cover Kit
49-0009 - Brass Head Primer Cups
49-1310 - 1937-1938 EL Knucklehead Bare Cylinder Head Set
42-3637 - Lower Valve Spring Cup Set Parkerized

Tech Notes: Suggested to use with #42-3637 Lower Valve Spring Cup Set Parkerized. Suggested to use with #49-0009 Brass Head Primer Cups. Suggested to use with #49-0878 18mm Doering Spark Plug Set.