S&S Cycle Generator Style Crankcase Natural - 31-0010

Features:

• Stock bore
• Designed with a stock-like appearance. In spite of the stock appearance, these cases incorporate updated design features that improve overall engine strength and reliability
• Pre-clearanced for strokes up to and including 5"
• All cases are designed for late style generator (2 brush type) with 5/16" mounting bolts to eliminate early generator cradle/mounting strap bosses for simplicity and economics
• Use more readily available 1/4"-20 thread fasteners to mount gearcover, oil pump, tappet guides, timer and timer advance bracket, except KN Series
• Timken sprocket shaft main bearing, in all years, instead of stock straight roller bearings - resulting in better flywheel assembly stability, placement and longer engine life
• Kits include crankcase assembly, all required bearings and hardware for installation and assembly instructions
• Note: All S&S crankcases use Timken style sprocket shaft bearing and 1958 and later pinion bearing. These cases will not accept stock 1957 and earlier flywheel assemblies
• 36-69 style oil pump Includes primary scavenge port machining Machined for 65-69 alloy primary

Installation Instructions (6.45 MB)