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S&S Cycle  |  SKU: ROL-SS31-0003

S&S Cycle SS31-0003 Alternator Style Crankcase Assembly w/Stock Bore Natural for Big Twin 70-84

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Regular price $3,140.00


The S&S Super Stock alternator style crankcases are perfect for stock replacement and for high performance applications. Pre-clearanced for strokes up to and including 5 inch. S&S Super Stock crankcases are compatible with stock 1970-1999 flywheel assemblies, primary covers, gearcovers, and clearanced for 38 amp alternator stators. 1970–1984 big twins. Natural finish. Available for stock, 3 5/8", and 3 13/16" bore applications.

NOTES: 1981–'84 style oil pump. Includes primary scavenge port machining. Machined for 1970 & later alloy primary.

(Part Numbers: ROL-SS31-0003)