Bone Breaker Performance

07/16/2026

Sorry we have not posted in a while extremely busy over here with motor builds and more we want to thank everybody for their support and making us one of the world‘s largest supplier forced induction V Twin performance parts for Harley Davidson in the world. Don’t forget we do lots of naturally aspirated engines also . The list below is just forced induction motors we have lots of NA going on also we have not talked about .

Turbo complete motor builds only.
2. 124 M8
5. 128 M8
4. 132 M8
3 135 M8.
8. 144 M8
2. 148 M8
3. 150 M8
2. 154 M8
1. 160 M8

2. 124 twin cam
2. 117 twin cam
3. 107 twin cam

And much more coming and what you don’t see in our other rooms !!!!!

So please be patient with us we are trying very hard to get all these done in a timely fashion.

If you have any questions please PM or email or call us we are easy to find.
815-765-1790
815-904-7110
[email protected]
Also we will have an updated website in few months .

07/01/2026

We will be closed July 2nd-July7
Sorry for any inconvenience please leave us a voice or Pm or email and we will get back to you the 8th
Have a Happy safe Fourth of July .

06/17/2026

Thanks for your support!!!
Please call or Pm for prices all kits are custom made to your order prices very……
815-765-1790 Adam
815-904-7110 Chris
Milwaukee 8 Gen 1 -2 kits for ..
Forced induction and naturally aspirated
Standard sleeved kits 124-128-129-132-135-140-144-148-150-153-157-160 kits

Billets kits
140-144-148-150-153 right now.

Sta

Gen 1 heads
Stage 1-2-3-4

Gen 2 heads
Stage 2-3-4mm

Drago cams
470-485-515-530-555-560
For naturally aspirated and forced induction

06/11/2026

06/05/2026

2017-2026
132-135 Bone Breakers Big bore kits
Comes with…
Cylinders
Pistons
Rings
Head and Base Gaskets
For natural aspirated or forced induction, when you’re ready for an upgrade.
Option we can thermo coat them also in house fast.
Please PM us or call us on pricing kits are made when ordered.
815-765-1790 Adam
815-904-7120 Chris

Thanks Thunder valley cycles for the nice pictures .

05/22/2026

Someone’s 144 kit is ready for shipping!
Stage 3 BBP 144
BBP billet cylinders
DP Forced induction pistons
DPT turbo 555 cam
Stage 3 gen 2 heads

This build should be a blast!
Thanks for picking BBP for your needs!

05/12/2026

Pic your poison! We got you covered from
Billet cylinders with ductile sleeves
140-144-148-150- 154
Soon 124-135 in couple months in billets

Standard cast with ductile sleeves
129-132-135-140-144-150-154-156-160

Worlds Biggest forced induction builder for Harley Davidson’s motorcycles. Custom head work, Custom cams , Custom big bore kits, Custom exhaust systems, Huge selection of Natural Aspirated motors from 74”-160” motors.
Quality Performance Respect

05/09/2026

Great job as always thanks for coining our products!

05/09/2026

Nice job! with factory SE heads
135 kit
Our 555 Tq cam
still turned out great! Thanks for the support !!!!

05/05/2026

160 M8 kits are available for NA and Forced Induction. Different compression can be made. Kits are custom made with Ductile liners. We recommend S&S cases when using these. Have to bore cases and use 4.5/8 crank standard HD rod length.
Pistons can be coated in house extra price . We also will have them in billet cylinders also. And stay tuned 170 kits are in development stages oh yeahhhh.

Please call or PM for prices.