# Wiseco HD Pan/ShovelHead 91 CR 3517X Piston Kit

V-Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine-tuned its V-Twin pistons for each specific engine platform to optimize performance and durability. From reliable rebuilds to all-out race, Wiseco has the pistons for your V-Twin build.

-   Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
-   Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
-   Performance-Enhancing Features: Varied across applications to maximize both durability and power
-   Improved tensile strength of forged material optimizes strength and service life
-   Optimized compression ratio to fit your build and performance goals
-   Designed and built specifically for each V-Twin engine platform
-   Engineered, forged, and machined in the USA in Mentor, OH
-   Wrist pin, rings and circlips included
-   3.517 in. Bore, 9:1 CR

This Part Fits:

Year

Make

Model

Submodel

1948-1964

Harley-Davidson

FL

Base

1953,1955-1964

Harley-Davidson

FLF

Base

1965-1969

Harley-Davidson

FLFB

Base

1970-1977

Harley-Davidson

FLH Electra Glide

Base

1966-1969

Harley-Davidson

FLHB

Base

1970-1972

Harley-Davidson

FLHF

Base

1966-1969

Harley-Davidson

FLHFB

Base

1971-1977

Harley-Davidson

FX Super Glide

Base

1974-1977

Harley-Davidson

FXE Super Glide

Base

1977

Harley-Davidson

FXS Low Rider

Base

1966-1977

Harley-Davidson

XLCH

Base

1966-1971

Harley-Davidson

XLH900

Base

1977

Harley-Davidson

XLT

Base

## Details

- **Price:** 266.57 CAD
- **Vendor:** Wiseco
- **Type:** Piston Sets - Powersports

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 266.57 CAD | In stock |

## Images

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

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wiseco-hd-pan-shovelhead-91-cr-3517x-piston-kit)
> Updated: 2026-07-14