KB411040 KB Performance Piston 88" to 95" big bore piston set. +.040" for Harley-Davidson
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Specifications
- Brand
- KB Performance Piston
- Part Number
- KB411040
- OEM Reference
- —
- Pack Quantity
- Sold as a set
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
88" to 95" big bore conversion. Used with stock heads and cylinders. By boring the stock cylinders from 3-3/4" to 3-7/8" big bore size engine capacity will increase from 88" to 95". High compression (pop-up). 10.5:1 CR. Piston weight 437gr. Piston pin weight 97gr. / Head type: Dome. Dome -11.2cc / Compression height 1.270". Bore 3.875" / Stroke 4.000". Rod length 7.667" / Cylinder length 4.938". Comes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. Note: Top compression ring will need additional clearance. See instructions.
Manufacturer part number: KB411040.
Fitment
32 models99-06 Twin Cam A/B
Dyna 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2005 | Dyna Low Rider FXDL |
| Harley-Davidson | 2004 | Dyna Low Rider FXDLI |
| Harley-Davidson | 2005 | Dyna Super Glide Custom FXDC |
| Harley-Davidson | 1999–2005 | Dyna Super Glide FXD |
| Harley-Davidson | 1999–2005 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 2004–2005 | Dyna Super Glide Sport FXDXI |
| Harley-Davidson | 1999–2005 | Dyna Wide Glide FXDWG |
Softail 17 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2006 | Fat Boy FLSTF |
| Harley-Davidson | 2002–2006 | Fat Boy FLSTFI |
| Harley-Davidson | 1999–2005 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2006 | Heritage Softail FLST |
| Harley-Davidson | 1999–2003 | Heritage Springer FLSTS |
| Harley-Davidson | 1999–2006 | Night Train FXSTB |
| Harley-Davidson | 2001–2006 | Night Train FXSTBI |
| Harley-Davidson | 1999 | Softail Custom FXSTC |
| Harley-Davidson | 2005–2006 | Softail Deluxe FLSTN |
| Harley-Davidson | 2006 | Softail Deluxe FLSTNI |
| Harley-Davidson | 2001–2006 | Softail Deuce FXSTD |
| Harley-Davidson | 2001–2006 | Softail Deuce FXSTDI |
| Harley-Davidson | 1999–2006 | Softail Standard FXST |
| Harley-Davidson | 2001–2006 | Softail Standard FXSTI |
| Harley-Davidson | 2005–2006 | Springer Classic FLSTSCI |
| Harley-Davidson | 1999–2006 | Springer Softail FXSTS |
| Harley-Davidson | 2001–2006 | Springer Softail FXSTSI |
Touring 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2005 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1999–2006 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1999–2006 | Electra Glide Standard FLHT |
| Harley-Davidson | 1999–2003 | Road Glide FLTR |
| Harley-Davidson | 1999–2006 | Road Glide FLTRI |
| Harley-Davidson | 1999–2005 | Road King FLHR |
| Harley-Davidson | 2006 | Street Glide FLHX |
| Harley-Davidson | 1999–2006 | Ultra Classic FLHTCUI |
Planning other changes? Find your model in the bike customiser.
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