Bone Breaker Performance

09/17/2026

150”
We will have our 4.600 bore x 4.5 stroke pistons for forced induction-40cc we just placed a order for more if any one looking to pre orders for M8 give us a call to order should have them 8-9 weeks
These pistons will handle 60 psi boost easy.

We also make these in our very popular 144 m8 kits .
4.5 bore x 4.5 stroke pistons.

You can order the kits with our standard ductile sleeve cylinders or with our Billet cylinders that we offer .

09/10/2026

Forced Induction cams for Harley’s.
Biggest selection of FI cams on the planet and most used and trusted for performance street or strip period …..

M8 Gen1 $399
470 stock
515 stock modified
530 modified
555 heavy modified

Gen 2 $399
515 stock
539 modified
555 heavy modified

M8 race cam for turbo and blower application only $405.00
533 R
555 R

Twin cam turbo and blower cams
$465.00
510 stock
570 A stock to modified

Twin cam race cams for turbo and blowers build $495.00
570 600
590-600 gear drive only
640- gear drive only

Any questions give us a shout or PM

815-209-6406
815-904-7110
815-765-1790
Ask for Adam
[email protected]

Website is outdated and under contract please be patient with website .

08/28/2026

Somebody’s 144 Turbo built motor getting ready to go over seas to Qatar. We will be crating motor next week for its long shipping ahead.
SS cases
Dark horse crank 4.5 stroke
BBP 144 billet cylinders 4.5 bore
DP-40 cc pistons
BBP stage 4 heads
DP 555 turbo cam
SS cam plate pump
HPI 70 mm throttle

08/26/2026

148” kits in Billet or Standard cylinders . For Forced Induction or Naturally Aspirated.
4.600 bore x 4.625 stroke.Any questions please call 815-765-1790 or PM us kits are made to order .

08/12/2026

Thank you for your support

We got you covered in almost every engine size and parts you could need.
From one of the worlds largest suppliers of Forced Induction motor parts and Naturally Aspirated rom Twin Cam and Milwaukee M8
Cams
Big bore kits
Head work
And More….

Twin cam
95-98-107-114-117-124-131-155”

M8
124-128-129-132-135-144-148-150-154-156-160 and more to come.

Contact Adam:815-765-1790-815-904-7110
Email [email protected]
PM us Facebook.
Website bonebreakerperformance.com
Website is under construction please be patient.

08/10/2026

Congratulations B2 racing winning AMRA Pro Bagger class this week end. Thank you for using our products and trusting in us for your turbo build. Also want to thank everyone one involved great job!

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 .

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 .