S&S Cycle SS31-0000 Crankcase Assembly w/3-1/2" Bore Natural for Harley-Davidson Big Twin 84-91Perfect for stock replacement and high performance applications in 1984 ' 91 Harley Davidson big twin models. This 3 1 2" (stock) bore crankcase offers 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. Includes all required hardware, fittings, and bearings, natural aluminum finish.
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S&S Cycle SS31-0000 Crankcase Assembly w/3-1/2" Bore Natural for Harley-Davidson Big Twin 84-91