S&S Cycle - S&S Performance Parts 2025 L - Volume 67

1984-'99

Phone: 608-627-1497

1 -2017-UP 2 -2007-'17 3 -1999-'06 4 -1984-'99 5 -1936-'84 6 -XL-RA1250 7 -BELTS & GASKETS 8 -TOOLS 9 -WARRANTY 10 -APPENDIX

Options • Available for stock, 35/8", and 313/16" bore applications with deck heights as much as 3/16" taller than 31/2" stock Kit Contents • Crankcase assembly • All required hardware, fittings, and bearings

Fitment • 1984–‘99 Big Twins Under 4" Bore

Super Stock® Alternator Crankcases For 1984–'99 Big Twin Crankcase Style Finish 31/2" Bore (Stock) • Machined for installation of a crank position sensor This allows the cases to be used in stock EFI applications and also allows easy installation VFI Fuel Injection A plug kit is included for applications that do not use a crank position sensor • Exempt from emissions tampering regulations under CARB EO# D-355-8 when used with stock bore cylinders for 31/2" Bore (stock) Features And Benefits • 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 1992–’99 big twins • 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" • Clearanced for strokes as long as 5" • Compatible with stock 1984–’99 flywheel assemblies, primary covers and gearcovers, making them perfect for stock replacement or high performance applications

Two crankcase breather holes allows increased flexibility.

Relocated oil scavenge pick-up reduces oil carry-over by increasing oil scavenge efficiency.

All S&S crankcases manufactured after June 1, 2008 do not have case interlock groove and ring and do not use case alignment studs Case mating surface is flat, and cases are aligned with alignment dowels

35/8" Bore

Notes

31-0005** (HD- 24469-83C, 24469-83A) 31-0055** (HD- 24571-93, 24569-95) 31-0000** (HD- 24469-83C, 24469-83A)

Natural

–

1992–'99

1, 3, 4

Wrinkle Black

31-0078 USA 1

Natural

31-0001***

1984–'91

2, 3, 4

31-0052** (HD- 24473-85C)

Wrinkle Black

–

1. 1992-'99 style oil pump.

2. 1984-'91 style oil pump.

3. Machined for 1984-'99 alloy primary.

4. Machined for stock or S&S EFI crank position sensor. Stock diameter only. **Exempt from emissions tampering regulations under CARB EO# D-355-8 when used with stock bore cylinders *** NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT

EO #D-355-8

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