Products > Engine > Crankcase Components > S&S Cycle Crankcase - Stock Bore - Silver Finish (31-0171)

S&S Cycle Crankcase - Stock Bore - Silver Finish (31-0171)

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SKU: 31-0171
ONLINE PRICE: $1,759.95


Greater overall strength than stock crankcases, especially in the front motor mount, an important consideration in high performance applications All S&S crankcases use strong, dependable Timken style sprocket shaft bearings to stand up to the most demanding applications Available in stock bore and 4-1/8in. bore Clearanced for strokes up to and including 5in. All passages between the crankcase cam support plate are O-ring sealed Compatible with most stock components Cam chest has clearance for up to .675in. lift cams Includes the S&S crankcase breather reed valve for Twin Cam 88 engines designed to eliminate oil carry over and oil scavenging problems Stock bore cases are perfect for replacement applications, 4-1/8in. bore cases make really large displacement custom engines possible and are available with the S&S cylinder stud pattern or with the stock cylinder stud pattern. 4-1/8in. bore cases with stock stud pattern are ideal for the S&S 124in. Hot Set Up Kit for stock crankcases


This product is labeled to fit with the following vehicles:
Stock photo shown, actual item may vary by model.

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While universal products are designed to fit a range of vehicles they may not fit all vehicles. If you are unsure of the fit we recommend posting a question on the ThumperTalk forums or contacting the manufacturer before ordering.