Your saved vehicles
New vehicle inventory
Parts by Brands
Close menu

Engine Compatibility Kit (4) for Crossfire 150R and Baja Reaction 150S


Contact Us
Contact us for current availability.
Notice: We're currently experiencing difficulties with inventory tracking. If needed, please contact us for a manual check.
READ OUR SHIPPING POLICY
READ OUR RETURN POLICY


Not available for sale right now.

The original HOWHIT engine with internal reverse is obsolete and impossible to find. This frame conversion kit allows you to install our standard 150cc or 175cc engine into your frame. Bolt on, plug and play install.

The engine itself is NOT included at this price, you must also buy a 150cc engine or a 175cc engine. No modification, welding, or fabricating is necessary.


Our New Rear Engine Mount

The rear engine mount is the key to installing your new engine. We design and cut our own engine mounts on our CNC Plasma Cutter, with American steel.



  • Bolt-on Frame Conversion Mount

  • Complete External Reverse Kit

  • Sprocket Relocation Kit

  • Standard Chain Tensioner

  • 55+1 Chain

  • Exhaust Gasket


Robust External Reverse Kit Included


One of the problems with the original engine was it's internal reverse. Our gearbox is the standard, most common version. It lasts longer, and is much less expensive than other options.

Important: You are fully responsible for installing the reverse kit and transmission shaft.


Sprocket Relocation Kit Included

With the new engine, your axle sprocket needs to be moved to the left. The relocation kit allows you to easily space over and align your sprocket in the proper location. The spacer hub is a split ring design allowing you to install without having to remove your axle, tires, hubs, etc saving you at least an hour of work and hassle.


New Chain & Master Link Included


A new chain is also included. For the Crossfire 150R you receive a hefty dual row chain and not the standard chain pictured above.


Exhaust Gasket Included




BDX Heavy Duty Chain Tensioner Included.


The chain tensioner comes complete with nuts, bolts, washers and all mounting hardware not pictured below. An option that we ask you to consider is our wrap around superduty chain tensioner. This design wraps around the entire rear of the engine providing a superduty secure engine mount.


BDX Heavy Duty Engine Mounting Bracket.


(Not pictured) This bracket allows you to mount your engine with no cutting or welding of metal. The rear engine mounting location is different from the original location and without this bracket would require you to cut off the tab from your frame and relocate and re-weld.

IMPORTANT INFO

  • Engine not included

  • Enables use of standard 150cc

  • External Reverse Kit

  • Chain and tensioner

  • All hardware included (not pictured)

  • All hardware included

  • Item #408

SUPPORT VENDORS WHO
SUPPORT THE SPORT!

Your order helps fund future upgrades!

BDX DIGITAL GY6 DYNO PROJECT
05df710b-4a38-45dd-af1a-e96bf5d289d9.jpg
REAL TESTING, TO SHARE REAL DATA

Our testing is funded 100% by your purchases.

Don't fall for claims elsewhere that are too good to be true! Save money and get performance parts that actually MAKE A DIFFERENCE!

HYDRAULIC BRAKE DYNO. NOT INERTIA! Allows us to find weak points and make precise engine improvements.
USA-MACHINED BIG POWER BUILT ENGINES
189961e2-608e-47fc-ad6c-e811635f1b45.jpg
175CC, 184CC, OR 187CC SCREAMERS!


Quotes from some GY6 engine builders will make you crap your pants. Our unique R&D nails reliability and POWER without adding BIG INFLATED COSTS.

· Affordable GY6 175cc big bore crate engines
· Custom GY6 hi-comp stroker pistons (up to 190cc)
RELIABLE POWER BUILDS UP TO 187CC
R&D DONE RIGHT
189961e2-608e-47fc-ad6c-e811635f1b45.jpg
GOING STROKER? YOU NEED THIS PISTON

Made specifically for +2.5mm or +3mm stroker builds.

Our GY6 stroker pistons RESOLVE the common causes of engine failure when using stroker crankshafts.

Designed and machined right here in the BDX SPEEDSHOP! Use one to stroke your engine up to 187cc without janky unreliable cylinder spacers!
HOMEGROWN AMERICAN WORK
AND INGENUITY
a04f840f-2f1b-4553-b547-31c5640f8baf.jpg
UPGRADES MADE IN USA - BUILT IN USA

Where do cheaper China parts outfits send your money?

We put your funds to work right here in the USA making these machines faster and stronger!
Thank you for your business!
JOIN OUR ADVICE FORUM!
8abd4b99-176f-40fe-9e72-3eda008842dd.jpg
GET ANSWERS YOU NEED

Don't spend more than you need to fix or upgrade your machine. Get accurate advice that will save you money and hassle. Read the rules, and join the conversation!
WARRANTY

Standard 30-Day Return Policy

Return Policy
We accept returns on new unused items. Ship the item to Buggy Depot within 30 days of arrival, and receive a refund or store credit minus our restocking fee (see Return Policy for full details).

Items which have been used or installed will not be accepted for refund. NO EXCEPTIONS.

Unusually large or special order items may not apply under this policy, and may have their own return conditions as stated in the individual product listing.

Returns must include all hardware, packaging and be shipped in a sturdy shipping box. Items received that do not meet these criteria will not be accepted and will be sent back to you at your cost.

In the case of a defective item, please see details of the 30-day warranty on our Return Policy page.

}
Order Support
Call us!
Check order status 24/7
Phone: 434-446-1864
Speak to a human
Mon-Fri 10AM-5PM EST
Phone #2: 434-447-4870

Email support
Send a support ticket

Technical Support
10,000 TECHNICAL
QUESTIONS ANSWERED
If it can break, we've talked about it.
Find your fix now, by seeing what others have done before.
Search the Tech Forum
Installation Guides
No factory tech manual? No problem.
Our guides and diagrams are copied and quoted EVERYWHERE...
The BEST guides and instructions Get our troubleshooting data straight from THE SOURCE.

Your Account

Forgot password?
Don't have an account? Register Track an Order

For security reasons, your session has been deactivated.

Do you want to reactivate? If you're in the middle of something, click cancel.
Cancel Yes, reactivate

"Will this item fit?"
The
We'll check for you!
It's easy, we just need your email
We will only use your email address to respond to this request.
View item details