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1b: BUGGY ENGINE: New High Performance GY6 175cc Big Bore Engine

To verify that this engine is compatible with your vehicle, select your model and come back to this listing. The listing will automatically give you compatibility information.


CUSTOM PRODUCT
USA-made. Built custom for you in VA!
This is one of our CUSTOM BUILT unique BDX products and has an extended timeframe before shipping. Please call to get an estimated time to produce and ship.

If you have a special event (birthday, vacation, etc.) or some other hard deadline, please call and will tell you if we can meet that target. If necessary we may be able to get it done for you per your schedule for an additional (reasonable) rush charge.
READ OUR SHIPPING POLICY
READ OUR RETURN POLICY


Guaranteed to Get the Right Engine for Your Buggy


Read below and if you are still unsure give us a call and we will make sure that you get the right engine for your buggy, GUARANTEED WE ARE THE BUGGY ENGINE SPECIALISTS!!!!!!!!! Nobody in the USA knows buggy engines like we do.

Does the Engine fit your Buggy?


This engine fits most Chinese-built 150cc buggies built from 2000 to around 2011 or 2012 with or without reverse. These are buggies with no reverse such as the Yerf Dog Spiderbox 3206 and 4209 and the yellow Tomberlin Crossfire 150 or buggies with the external reverse gear box such as the older Kinroad, Blade, Carter Talon, Twister, SUNL, ROKETA and many more. If you have an external reverse you simply remove your gear box from your old engine drive shaft and install it onto your new engine drive shaft.

Does Your Buggy Have an Internal Reverse?
If you have a newer buggy such as a TaoTao, Explorer, Scrambler, Raptor, Falcon, Kandi Spider, Tomberline Crossfire 150R, Baja Dune 150, American Sports, Trailmaster or UTV such Yerf Dog Rover CUV or Bull Dog Pup you will need one of our internal reverse engines for buggies.

PROMOTION - $50+ of free parts


You get a high performance Uni-Filter kit with washable and reusable filter (a $46 value) and a quart of one quart of high quality Bel-Ray 10W-40 engine oil (a $9.99 value) FOR FREE!

Racing Engine
Our Buggy Depot 175, 184cc performance engines are for off-road racing purposes only.


Is this you rolling back down the hill?

Stock GY6

Get the power you need!


The clip above shows hill climbing ability of our flagship 184cc GY6 engine (stroked, big bore, and high compression). (This is NOT the same engine being sold in this listing) The purpose of this comparison is to showcase our ability to radically (and reliably) improve the performance of the GY6 engine. The 175cc will make it up this same hill, unlike the 150cc.


CVT Upgrade InstalledCVT Upgrade InstalledElectrical UpgradedElectrical Upgraded




More CC means More Power


Read our article on how displacement relates to more power.
How big bore kits & strokers work

Professionally Machined Big Bore Prep


Guaranteed true 175cc


Don't be tricked by "200cc" and "180cc" engines on the internet that are actually 171cc. Our engine uses a high quality 62mm piston for exactly 174.5cc actual displacement.


Large valves for higher top-end powerLarge valves for higher top-end powerArrives with Large Valves Installed
The large 27mm/24mm valves allow the engine to breathe better at high RPM, allowing for higher top speeds. This is a very noticeable improvement if your original engine came with the smaller 24/23 valves.



8-pole charging upgrade8-pole charging upgradeAlso includes STAGE 1 Electrical Upgrade
This engine comes from the factory with our S1 Electrical package, which generates more electrical power for lighting and charging the battery more rapidly.



Note: This engine comes with the non-reverse transmission shaft. If you have a buggy with reverse, add a reverse transmission shaft to your order and we'll install free )

Light up the trails!
The high output stator allows you to add extra lights and accessories.

Kick-Start Internals Added
Depending on which frame you have, you may be able to use the kickstart internals installed on this engine if there is enough frame clearance. Ask us about our kickstart retrofit kit which comes with the muffler mount and kickstart lever needed to make this function.

Other Differences
Our engines come with debris blocker on the inlet of the CVT, instead of the original boot shown in the picture. The original boot wasn't designed for dusty conditions and clogs quickly. This has (in our experience in speaking with many owners) lead to prematurely failed clutches and flat spotted rollers due to heat build up. Also, this engine does come with an intake inlet manifold, although none is shown in the picture.

Improved debris blocker installedImproved debris blocker installedIntake manifold inlet includedIntake manifold inlet included


If you have reverse: This engine comes with the short transmission shaft common on Yerf Dog and Crossfire 150s. If you have reverse you'll need to install the Reverse Output Shaft into the transmission. You could use the shaft from your original engine or buy a new one Reverse Shaft.

It's also a good idea to grab a couple exhaust gaskets for the install.

This engine will fit nearly every buggy and ATV that already has a GY6 engine installed. This will replace SUNL and ROKETA engines as well.

Engine is shipped DRY with no oil. Be sure to add 750ml of 10w40 to the crankcase and 120ml of 80w90 to the gearcase before starting.

What's included:
Starter, stator, and intake manifold arrive bolted to engine. CVT transmission is fully assembled and cover installed. All final transmission components are assembled and cover installed. All drain bolts and filter are included. Valve cover installed.

Nothing more comes with the engine than what makes it a fully assembled self-contained unit with no oil leaks or covers missing, etc. Carburetor, exhaust, ignition, and related pats are not part of the self-contained engine unit and are not included. Each of these are available separately.

Remember to adjust valves after break-in period.


Shipping Timeframe


These engines a built in low volume and tested before shipping. Delivery lead time is approximately 2-3 weeks after ordering.


IMPORTANT NOTES

No returns on engines.
Please do not return your engine. It will be refused and returned to you.

Engine is shipped DRY with no oil.
Be sure to add 750ml of 10w40 to the crankcase and 120ml of 80w90 to the gearcase before starting.

If you have reverse
This engine comes with the short transmission shaft common on Yerf Dog and Crossfire 150s. If you have reverse you'll need to install the Reverse Output Shaft into the transmission. You could use the shaft from your original engine or buy a new one Reverse Shaft.

What's included:
Everything under the engine's covers and plastics is included and installed, this is a complete unit. Starter, stator, and intake manifold arrive bolted to engine. CVT transmission is fully assembled and cover installed. All transmission components are assembled and cover installed. All drain bolts and internal oil screen are installed. Valve cover installed.

Sold separately:
Carburetor, exhaust, ignition components are all sold separately.

Remember to adjust valves after break-in period.

Important! Read this listing fully


We don't accept returns on engines! All frequently asked questions are answered here. If you have any additional questions please let us know before ordering.

IMPORTANT INFO

  • Complete Engine & Transmission

  • 62mm Big Bore (+5mm)

  • STAGE 1 Electrical System

  • STAGE 1 Transmission

  • Item #360

SUPPORT VENDORS WHO
SUPPORT THE SPORT!

Your order helps fund future upgrades!

BDX DIGITAL GY6 DYNO PROJECT
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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

Engine 60-day Limited Warranty

This engine comes with a 60 day warranty on parts. Any labor costs for installation or repair are not covered. This warranty covers parts only.

Conditions
The engine must be installed and repaired by someone of sound mechanical competence.

Exclusions
Expendable maintenance items are not covered, and include but are not limited to: drive belts, drive clutches, brake pads/shoes, vacuum or fuel lines, spark plug.

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