S&S Cycle Twin Cam Crankcase Assembly - Black - 31-0178

With S&S cylinder stud pattern. With S&S cylinder stud pattern. Replacement crankcases for Touring and Dyna Twin Cam engines. Offered is greater overall strength than OEM cases, especially in the front motor mount, which is an important consideration in high performance applications. CNC machined from high strength heat treated aluminum castings make these S&S cases much more cost effective than billet cases. A Timken® style sprocket shaft bearing is used to best withstand the most demanding applications. All oil passages between crankcase and gear cover are o-ring sealed. Includes roller bearings for camshaft and pinion shaft and a Timken sprocket shaft bearing. The large cam chest allows a cam lift up to .675" without clearancing. Clearanced for strokes up to 5". Cases are compatible with stock components like oil pump, cam support plate, gear cover etc. Cases include hardware and installation instructions. Note: Includes camshafts, pinion and sprocket shaft bearings. Note: Installation of the T124 engine in a 99-05 Dyna chassis requires a oil line installation kit which is no longer available. This kit included a special transmission top cover and oil lines. Custom fabrication is required. Note: Installation of the T124 engine in a 99-06 Touring chassis requires 902299 oil line installation kit. The stock transmission cover can be re-used. Note: Crankcases for the Softail engine, with internal balancers, is not available. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required.

• Category: Crankcases
• Manufacturer part number: 31-0178