# S&S Cycle 55-64 BT 84in Stock Bore Stroker Kit

The S&S Stock Bore Stroker Kit is an economical way to increase the displacement of your engine. This S&S 84" stock bore Hot Set Up Kit upgrades 74" panhead engines to 84" displacement at approximately 8.4:1 or 7.3:1 compression

-   Includes a dynamically balanced 4-1/2" stroke flywheel assembly complete with S&S heavy duty connecting rods and mainshafts
-   Minor crankcase and cylinder modifications are required
-   Piston type determines compression ratio
-   This kit requires special pistons

This Part Fits:

Year

Make

Model

Submodel

1955-1962

Harley-Davidson

FL

Base

1955-1959

Harley-Davidson

FLF

Base

1958-1959

Harley-Davidson

FLH Duo-Glide

Base

1955-1957

Harley-Davidson

FLH Hydra-Glide

Base

1955-1959

Harley-Davidson

FLHF

Base

## Details

- **Price:** 2289.23 CAD
- **Vendor:** S&S Cycle
- **Type:** Stroker Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2289.23 CAD | In stock |

## Images

- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-55-64-bt-84in-stock-bore-stroker-kit)
> Updated: 2026-07-13