This will ensure the chain does not rub the cases

#BHC-834 1/4-20 x 1-1/4 inch Length Chrome Button Head Allen Bolt - 10 Pack

This set includes Qty 3 each of the following taps:

Choose from the original Overbearing

#8304 CAD Complete Stock Hardware Kit - 1937-1939 Harley-Davidson 74 & 80 Cast Iron Head - CAD Plated Brand_Diamond Chain Company This will ensure the chainComplete stock hardware kit for Harley Davidson 74 & 80 Side Valve with cast iron heads 1937 1939, CAD plated. Each kit contains all the stock motor nuts, bolts, washers and studs for your motor. The kit includes primary cover screws, lifter base screws, circuit breaker screws, case studs and nuts, timing plug, cam cover screws, cylinder base nuts and washers, oil pump nuts and bolts, transmission side cover nuts and washers, transmission top screws,