Cylinder or Head Intake Manifold Inserts for Harley Knucklehead FL 1940-1947

Vintage Harley Davidson KNUCKLE PANHEAD PAIR Intake Manifold NIPPLE ADAPATOR SIL

Intake Manifold Steel Conversion Nipple Kit for Harley Knucklehead Panhead FL

James 4-Bolt Linkert Carburetor Intake Manifold Spacer Kit (JGI-29250-55)

Cylinder or Head Intake Manifold Inserts for Harley-Davidson

Intake Manifold Conversion Nipple Kit 1940-1954 Harley 74's by Colony. 7344-6

HARLEY Cylinder or Head Intake Manifold Inserts fits 1940-1947 FL,

Cylinder or Head Intake Manifold Inserts for Harley Davidson by V-Twin