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

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

• 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
• Cam chest is moved outward .250" to allow crankcases to handle large cylinder bore sizes
• Clearanced for strokes as long as 5"
• 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"
• 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
• Machined to accept the stock oil filter assembly used on 1992-'99 big twins
• Relocated cam chest oil pick-up increases gear case scavenging and virtually eliminates oil carry-over at sustained high speeds

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