# S&S Cycle 70-84 BT 5in Stroke Small Diameter Flywheel Assembly For S&S SH103 Engine

This 5" stroke 8-1/4" diameter flywheel assembly replaces the original flywheels in S&S® 103" SH103 engines for 1970-'84 HD big twins. Balanced to S&S® 3-5/8" bore pistons.

-   Flywheels are CNC machined from heat-treated, closed die, steel forgings, and are stronger than cast iron or late style steel flywheels
-   Dynamically balanced and fully assembled with premium quaility S&S® mainshafts and heavy duty 7.440" connecting rods

## Details

- **Price:** 2245.51 CAD
- **Vendor:** S&S Cycle
- **Type:** Flywheels

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2245.51 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-70-84-bt-5in-stroke-small-diameter-flywheel-assembly-for-s-s-sh103-engine)
> Updated: 2026-08-15