Page 487

2016roadiron

487 S&S® SUPER STOCK® BIG TWIN ALTERNATOR STYLE CRANKCASES • S&S® Super Stock alternator style crankcases are perfect for stock replacement and for high performance applications. Available for stock, 3-5/8 “, and 31-3/16“ bore applications. Pre-cleaned for strokes up to and including 5”. • S&S® Super Stock crankcases are compatible with stock 1970-up flywheel assemblies, primary covers, gear covers, and clearanced for 38 amp alternator stators. • Pictured: S&S® super stock crankcase kit for Evolution® engines. Includes all the required hardware fittings and bearings. S&S® Super Stock Alternator style cases are available for three engine styles: • Shovelhead 70-84 • Evolution 84-91 - EFI ready • Evolution 92-99 - EFI ready For S&S® 3 5/8” cylinders with 3.878” diameter spigots 1970 to 1984 50-310004 Natural 1984 to 1991 50-310001 Natural 50-310053 Black 1992 to 1999 50-310011 Natural 50-310078 Black Crankcases for stock H-D type cylinders with stock dimension spigots 1970 to 1984 50-310003 Natural 1984 to 1991 50-310000 Natural 50-310052 Black 1992 to 1999 50-310005 Natural 50-310055 Black S&S® Crankcases for Twin Cam 88® engines (99-06) Good news for owners of Twin Cam 88® engines who need replacement crankcases for repair and high performance applications. Good for owners of 84-99 style chassis who would like to upgrade to a more modern power plant. S&S® offers two styles of crankcases, one for each application. The first type of crankcase is intended to replace the crankcases in Harley- Davidson® Twin Cam 88® engines in existing Harley-Davidson® chassis only. S&S® stock style crankcases have a rear motor mount that bolts directly to the stock 99-06 transmission for all models except 2006 Dyna™. These crankcases are compatible with the stock primary, charging system, and other stock components. S&S® replacement crankcases are not available for Twin Cam 88B™ or 2007- later Twin Cam 96™ or Twin Cam 96B™ engines. The second type of crankcases is machined with a rear motor mount similar to that of an Evolution® big twin engine, and will bolt directly into stock or aftermarket frames for 84-99 big twins. This type of crankcase uses the 84- 99 style sprocket shaft seal, seal spacer, and alternator stator coil since it is intended to bolt up to the existing primary drive system of motorcycles of that year group. Otherwise, the two case styles are nearly identical. Both styles are available for stock bore, 4” bore, and 4 1/8 ” bore engines. Stock bore cases are perfect for replacement applications, 4” bore cases are a natural for use with the S&S® Super Sidewinder® Hot Set Up Kits®, and 4-1/8 ” bore cases make really large displacement custom engines possible. Features: • 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. • Clearanced for strokes up to and including 5”. • All passages between the crankcase cam support plate are o-ring sealed. • Compatible with most stock components. • Cam chest has clearance for up to .675” lift cams. • Includes the S&S® crankcase breather reed valve for Twin Cam 88 engines designed to eliminate oil carryover and oil scavenging problems. Bore Black finish Natural finish 4 1/8" 50-10108 4" 50-310105 50-310104 Stock 50-310102 50-310101


2016roadiron
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