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

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

*Images in the listing are for reference only. Actual product may vary.
*Tinted shield sold separately for all Full-Face helmets unless otherwise noted.
  • Brand: S&S Cycle
  • 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
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