WK2788 96" to 103" Twin Cam big bore piston kit. STD
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Wiseco
- Part Number
- WK2788
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
Stepping up from a 96 to a 103 cubic inch Twin Cam is one of the best ways to wake up a 2007 to 2017 Big Twin. This Wiseco big bore conversion kit allows you to achieve that displacement using your stock cylinders, provided they are bored out from the original 3.750 inches to 3.875 inches. These reversed dome forged pistons maintain a manageable 9:1 compression ratio with stock heads, ensuring the bike stays street-friendly while gaining significant torque. The kit is sold as a complete set including Hastings rings, circlips, and wrist pins. It is a proven path for riders wanting more grunt without sacrificing reliability. It is sold as a complete kit.
Manufacturer part number: WK2788.
Fitment
22 models07-17 96" Twin Cam
Dyna 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2008–2013 | Dyna Fat Bob FXDF |
Softail 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2013 | Fat Boy Lo Anv FLSTFB |
| Harley-Davidson | 2010–2017 | Fat Boy Lo FLSTFB |
| Harley-Davidson | 2012 | Fat Boy Lo FLSTFB 103 |
| Harley-Davidson | 2017 | Slim FLS |
| Harley-Davidson | 2017 | Slim S FLSS |
| Harley-Davidson | 2012–2016 | Softail Slim FLS |
| Harley-Davidson | 2012 | Softail Slim FLS 103 |
| Harley-Davidson | 2016 | Softail Slim S FLSS |
Touring 12 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2014 | CVO Limited FLHTK 103 |
| Harley-Davidson | 2013 | Electra Glide Ultra Limited Anv FLHTK |
| Harley-Davidson | 2010–2013 | Electra Glide Ultra Limited FLHTK |
| Harley-Davidson | 2010–2013 | Road Glide Custom FLTRX |
| Harley-Davidson | 2015–2017 | Road Glide FLTRX |
| Harley-Davidson | 2015–2017 | Road Glide Special FLTRXS |
| Harley-Davidson | 2011–2017 | Road Glide Ultra FLTRU |
| Harley-Davidson | 2007–2017 | Road King Classic FLHRC |
| Harley-Davidson | 2007–2017 | Street Glide FLHX |
| Harley-Davidson | 2014–2017 | Street Glide Special FLHXS |
| Harley-Davidson | 2014–2017 | Ultra Limited FLHTK |
| Harley-Davidson | 2017 | Ultra Limited Shrine FLHTK |
VRSC 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2012 | VRSCDX Night Rod Special VRSCDX |
Related Products
View all →
More from Wiseco
View all →
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.