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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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Description
Wiseco HD 1340 1978-84 ShovelHead 8.51 CR Piston KitV 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,
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
- 3.527 in. Bore, 8.5:1 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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great house pants
Color: Black, Size: 42
these pants are very comfortable and fit well. Perfect for the summer in the desert
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
★★★★★ 1
They run short
Color: Khaki, Size: 36
They run short and then when you wash them they get even shorter I wash them in cold water and I don't dry them all the way I pull them out and they still are short
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Reviewed in the United States on June 9, 2026
★★★★★ 3
Husband doesn't like!
Color: Navy Blue, Size: 34
My Husband does not like the way they look. The quality and the material.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Comfy pants!
Color: Camel, Size: 34
These elastic waist pants fit my son perfectly. He has difficulty with buttons and zippers so this is his best bet in order to look a little more fancy. The fit very well and are true to size. They are a little thin, but they look nice.
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Reviewed in the United States on February 18, 2026
★★★★★ 5
NICE AND STRETCHY
Color: Navy Blue, Size: 42
These pants are made of a material that seems durable and is definitely comfortable, and they have a stretch band at the waist that can comfortably accommodate many different belly girths-- from slim to portly. The waist also has a drawstring. I'd call these light weight pants, as the material is thin. They aren't baggy at all and fit the natural contours of an average male physique.
The pants have two fairly deep front pockets and one small rear pocket that can easily fit a regular-sized wallet. But, I would not recommend carrying a wallet in the rear pocket, as, due to the depth of the pocket being only as deep as the wallet is long, it might slip out as you move around, sitting and rising.
If nature calls, and you need to pee, you will have to pull your pants down and excite anyone in the immediate vicinity, as there is no opening, either buttoned or zippered, in the front of the pants. So, in that respect they are kind of like sweatpants. I'd call these pants good for inside the house or wearing on the street.
I like them despite the lack of a fly, so I give 5 stars. I see lots of Chinese, Korean, and Japanese guys around who like to wear this type of pant, but these fit nicely for generally larger and more robust Caucasians type physiques as well. You don't have to worry about a belt or a broken fly zipper with these.
Of course they are made in China, but due to their vast experience selling clothing to Americans, the manufacturers are well acquainted with big masculine American bodies and their needs.
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Reviewed in the United States on January 9, 2026
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