# Wiseco HD 1340 Shovelhead 9.51 (3517X-4730P2) Piston Kit

The Wiseco team has led the powersports performance industry through eras and technological advancements, including the rise of high-performance 4-stroke engines. Today, Wiseco's forged 4-stroke pistons are engineered for specific engine applications and manufactured to the tightest tolerances, offering unparalleled performance and strength. Wiseco 4-stroke pistons are proven across all levels of riding and are available for a wide range of models.

-   Improved tensile strength of forged material optimizes strength and service life
-   Optimized compression ratio to fit your build and performance goals
-   Designed and built for each specific 4-stroke powersports engine
-   Designed and built specifically for each V-Twin engine platform
-   Dedicated forgings allow for optimized strength-to-weight ratio
-   Includes high-quality piston rings, wrist pin(s), and circlips
-   Engineered, forged, and machined in the USA in Mentor, OH
-   Wrist pin, rings and circlips included
-   3.517 in. Bore, 9.5:1 CR

This Part Fits:

Year

Make

Model

Submodel

1978-1984

Harley-Davidson

FLH Electra Glide

Base

1979-1981

Harley-Davidson

FLHC Electra Glide Classic

Base

1980-1984

Harley-Davidson

FLHS Electra Glide Sport

Base

1983-1984

Harley-Davidson

FLHTC Electra Glide Classic

Base

1984

Harley-Davidson

FLHX Electra Glide Special

Base

1980-1983

Harley-Davidson

FLT Tour Glide

Base

1981-1984

Harley-Davidson

FLTC Tour Glide Classic

Base

1980-1982

Harley-Davidson

FXB Sturgis

Base

1983

Harley-Davidson

FXDG Disc Glide

Base

1978-1984

Harley-Davidson

FXE Super Glide

Base

1979-1984

Harley-Davidson

FXEF Fat Bob

Base

1982-1984

Harley-Davidson

FXR Super Glide II

Base

1984

Harley-Davidson

FXRDG Disc Glide

Base

1982-1984

Harley-Davidson

FXRS Low Glide

Base

1983-1984

Harley-Davidson

FXRT Sport Glide

Base

1978-1982

Harley-Davidson

FXS Low Rider

Base

1983-1984

Harley-Davidson

FXSB Low Rider - Belt

Base

1984

Harley-Davidson

FXST Softail Standard

Base

1980-1984

Harley-Davidson

FXWG Wide Glide

Base

## Details

- **Price:** 561.5 CAD
- **Vendor:** Wiseco
- **Type:** Piston Sets - Powersports

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 561.50 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wiseco-hd-1340-shovelhead-9-51-3517x-4730p2-piston-kit)
> Updated: 2026-07-15