S&S Cycle SH93 Shovelhead Engine for 1966-1984 Harley-Davidson Big Twin
The S&S Cycle SH93 gives a worn-out Shovelhead a second chance that outperforms the original in every way that counts. This engine captures the soul and visual character of the classic Shovelhead era while delivering the power, dependability, and modern engineering that vintage powerplants were never able to provide.
Key Features
- Completely assembled and ready to run, shipping with ignition and carburetor installed
- S&S Super Stock cylinder heads for proven combustion performance
- S&S billet cam cover, hydraulic valve train, and roller rocker arms for long service life
- Factory single-fire ignition system for clean, reliable cold starts
- S&S Super carburetor with classic teardrop air cleaner maintains period-correct appearance
- Available in alternator and alternator/generator configurations to match original chassis type
- 1984-1999 style S&S cam and tappets for enhanced durability and easier service
- All generator-style cases include reverse ignition drive gears
Technical Specifications
- Displacement: 93 cubic inches
- Pistons: S&S 8.5:1 forged pistons
- Cylinder heads: S&S Super Stock
- Cam cover: S&S billet
- Valve train: S&S hydraulic, roller rocker arms
- Ignition: S&S Super Stock single-fire
- Carburetor: S&S Super carb with teardrop air cleaner
- Finish: Natural crankcases, black powder-coated cylinders
- Cam and tappet design: 1984-1999 S&S style
- Warranty: 2 years
Fitment Notes
- Alternator/generator configuration fits 1966-1984 H-D Big Twin, including 1966-1969 generator-era and 1970-1984 alternator-era models
- Alternator configuration fits 1970-1984 H-D Big Twin alternator-era models only; select the alternator/generator variant for 1966-1969 generator-era chassis
- Generator-style cases include reverse ignition drive gears; confirm configuration matches your chassis before ordering
- NOT LEGAL FOR SALE OR USE IN CALIFORNIA on any pollution-controlled motor vehicle; not legal on any EPA pollution-controlled motor vehicle
- Review the Fitment tab for complete year and model breakdown
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