Replica 61" Knucklehead Cylinder Set Black

Replica 61" Knucklehead cylinder set features cast iron construction with 4 fins above head bolt line. Original markings with a black finish and are pre fitted with cast 7.5:1 pistons and rings.
Cylinders have original casting marks of MoCasCo. Set includes 61" overhead valve piston ring set. *NOTE: Check ring gap before final assembly. Include casting numbers on cylinders. *NOTE: All cast iron cylinders have same piston to wall clearance .0025 -.003.