Bone Breaker Performance

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.

04/24/2026

Customer getting our stage 3 billet 150 turbo top end kit.

150 BBP billet kit FI DP pistons -18 cc

Stage 3 gen 2 SE heads redone with plus 3 95 cc

Drago 555 turbo cam

Using a comp turbo 64/64 kit for his Harley 2024 bagger. Can’t wait to see what he does with it …

Compression set at 10.5 static
With cam 9.9.0 for boost

04/18/2026

Bone Breaker Big bore kits Forced Induction and Naturally Aspirated
Twin Cam and Milwaukee eight

M8 kits
120-124-128-132-135-144-148-154-158-160”-soon 170”

Billet kits are for M8 only right from 140-154 inch. We are working on 124-135 kits for billet street and race.

Twin cam kits
95-98-103-107-110-112-117-124”155 motors

Below our pics of our kits . Please call or pm for prices. These kits are custom ordered, made to your specs of what you need. Prices are subject to change depending on options and coatings that we offer..