S&S Cycle 84-91 BT w/ Stock Bore Super Stock Alternator Style Crankcase -Natural

Perfect for stock replacement and high performance applications, these crankcases offer some unique features. Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers and are clearanced for 38 amp alternator stators.

• Compatible with stock 1984-'99 flywheel assemblies, primary covers, gearcovers, and clearanced for 38 amp alternator stators, making them perfect for stock replacement or high performance applications


• Machined for installation of a crank position sensor, allowing the cases to be used in stock EFI applications and allows easy installation of S&S IST® Ignition and VFI Fuel Injection.


• 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


• 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


• Machined to accept the stock oil filter assembly used on 1984-'91 big twins


• Clearanced for strokes as long as 5"


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Fits:
Harley Davidson_FLHS Electra Glide Sport Base_1984_
Harley Davidson_FLHS Electra Glide Sport Base 1987 to 1991
Harley Davidson_FLST Heritage Softail Base 1986 to 1990
Harley Davidson_FLSTC Heritage Softail Classic Base 1988 to 1991
Harley Davidson_FLSTF Fat Boy Base 1990 to 1991
Harley Davidson_FXLR Low Rider Custom Base 1987 to 1991
Harley Davidson_FXRS Low Glide Base 1984 to 1991
Harley Davidson_FXRT Sport Glide Base 1984 to 1991
Harley Davidson_FXSTS Springer Softail Base 1988 to 1991
Harley Davidson_FXWG Wide Glide Base 1984 to 1986