Knucklehead Rocker Arm Set
For use on the 1936-1937 valve spring cup and cap style covers where the rocker arms will be exposed. The outer diameter of the rocker arm is turned down to .80 inch on the center portion excluding the seal surface area on the pushrod side. This is for added clearance on 1938-1947 model lower tin covers. Sold as a 4 piece set. *NOTE: Right side of arm seal surface with ground outer diameter for single point seal contact. *NOTE: Before installation re-surface the head gasket by fly cutting or blanchard grinding. Re-check bore size STD .010 or .020 oversize. Rivet head that plugs holes from oil passages must be removed.
Instructions: http://www.vtwinmfg.com/Instructions/11/11-1157.pdf
FITS
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 1940
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
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