S&S Cycle SSC Crankcases Crankshafts - 31-0047

A ported breather passageway and a machined breather window allows the air/oil mist to flow from the flywheel cavity to the cam chest of the engine with the least possible restriction

Machined for installation of a crank position sensor which allows for use in EFI applications and also allows easy installation of S&S IST® Ignition and VFI Fuel Injection

Crankcase venting can be achieved via two crankcase breathers, the cylinder heads, or both! We recommend using both crankcase breathers in engines larger than 95"

Relocated cam chest oil pick-up increases gear case scavenging and virtually eliminates oil carry-over at sustained high speeds

Cam chest is moved outward .250" to allow crankcases to handle large cylinder bore sizes

Designed for high performance engines with cylinder bores between 4" and 4 3/8".

Machined to accept the stock oil filter assembly used on 1992-'99 big twins

S&S Cycle 92-99 BT w/ 4in Bore Special Application Crankcase - Natural

Clearanced for strokes as long as 5"