Find parts for your rideFind your bikeHide bike finder
Choose from the vehicle applications currently listed in our catalog. Engine sizes refer to the standard engine.
Bike not listed or engine modified? Contact us to check fitment.


KB Performance, 88" to 95" big bore piston set. STD
Choose options


The details that matter
Details
Description
88" to 95" big bore conversion kit. Used with stock heads and cylinders, 3-3/4" bore and 4.938" long cylinders. By boring the stock cylinders to the 3-7/8" big bore size you will increase engine capacity from 88" (1448cc) to 95" (1546cc).
9.25:1 CR. Piston weight 400gr.
Piston pin weight 97gr. / Head type: Flat top.
Dome +16.7cc / Compression height 1.270".
Bore 3.875" (3-7/8") / Stroke 4.000".
Rod length 7.667" / Cyl. 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.
Specifications
| Unit | SET |
|---|
Fitment
99-06 Twin Cam A/B (NU)
Part numbers
| Supplier SKU | 944716 |
|---|---|
| Manufacturer part | KB348STD |
Specifications
| Brand | KB Performance Piston |
|---|---|
| Category | Pistons and rings kits |
Fitment
Part numbers
Need a hand choosing? Talk to the workshop

