S&S Cycle

1984–'99 big twins

1984–1999 Evolution ® 1926–1984 Vintage Engines Tools & Shop Supplies Warranty & Company Policy Appendix & Index

SHORT BLOCK ASSEMBLIES

Replace your entire stock lower end with an S&S Short Block assembly! A rock solid S&S flywheel assembly, installed in a set of bullet proof S&S Super Stock® crankcases.

FITMENT • 1984–’99 Carbureted and Fuel Injected 80" Evolution® big twin FEATURES AND BENEFITS • Stock 31/2" bore and 41/4" stroke • Premium quality U.S. made S&S components • Compatible with all stock and most aftermarket parts • Full one year parts warranty • Includes certificate of origin for new crankcases

SHORT BLOCK ASSEMBLIES ± Chassis Style

EO #D-355-19

Bore Stroke Warrany Period Finish

Part #

310-0780A 310-0801A 310-0781A 310-0802A

Natural

1984–’91 big twins

Wrinkle Black

One year parts only

3 1/2"

4 1/4"

Natural

1992–’99 big twins

Wrinkle Black

1977–’89 style pinion gears, spacers, and nuts are required when installing S&S flywheel assemblies. For installation in 1990–’99 or scratch built engines, order S&S Pinion Shaft Conversion Kit Exempt fromemissionstamperingregulationsunderCARBEO#D-355-19 ± WARNING:CancerandReproductiveHarm–www.P65Warnings.ca.gov

PINION SHAFT CONVERSION KIT Fitment

Part #

33-4148

1990–up big twins

33