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.

• Stock bore
• Pre-clearance for strokes up to and including 5"
• All cases are designed for late style generator, two 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 gear cover, 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

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.

(1) Crankcase assembly

(2) Tapered bearings

(1) 1/4"-20 x 1" Socket cap head bolt

(2) 1/4"-20 x 1/2" Hex head bolts

(2) 1/4" Split lock washers

(2) Set screws

(1) 45 Degree hose fitting

(1) 1/8"-27 Pipe male hose fitting

(1) Primary oil return fitting

(1) Crankcase oil screen

(1) Crankcase oil screen spring

(1) CPS hole plug

(1) Drain plug

(1) Seal

(1) Spacer

(4) 5/16"-24 Cylinder studs

(1) 1/4"-20 x 5-1/2" Hex head bolt

(1) 5/16"-24 x 5" Hex head bolt

(9) 5/16"-24 Hex nuts

(11) 5/16' Flat washers

(1) 1/4"-28 Hex nut

(1) 1/4" Flat washer

No instructions