POLARIS ACE ENGINE GY6 150cc or 175cc

DIRECT GUARANTEED FIT FOR POLARIS ACE 150cc

New GY6 150cc Internal Reverse Buggy Go-Kart Engine. This is the exact replacement engine for your vehicle.

• Guaranteed Direct Bolt on Fit
  
• Certified 150cc and not 125cc like some eBay engines
• Customized just for your buggy.
• Rear mount bushing included

READ WARNING BELOW ON CHEAP EBAY AND AMAZON ENGINES. SOME OF THESE ENGINES ARE 125CC BEING SOLD AS 150CC
ADD A UNI-FILTER TO YOUR ORDER AND GET A ONE YEAR WARRANTY.

YOU HAVE TWO ENGINE OPTIONS

• Engine 1:New certified true 150cc engine

• Engine 2:New175cc GY6 Big Bore Engine. This engine comes with the 62mm big bore cylinder and piston kit pictured below installed in a bored out case.Performance transmission recommended–Click here. Regular price $249 – Now $99 if purchased with an engine.
  

YOU HAVE SIX POWER PERFORMANCE OPTIONS

• Option 1:American made high performance Uni-Filter air filter ensures clean air to your engine and long life. See why a NEWUni-Filter is MANDATORYfor ALL new engines and purchase at this link. Your one year new engine warranty applies only if a new uni-filter is purchased with this engine.If you don’tget a Uni-Filter you are guaranteed to be putting dirt into your clean NEW engine.See Details

• Option 2: BDX High Performance Transmission:If you add this option the parts will installed into your new engine.See details.Regular price $249, $99 with purchase

• Option 3:A12 Cam Shaft.If you purchase theA12 Cam Shaftit will be installed and tested in your new 175cc engine.
  

• Option 4: 11 Pole Stator, rectifier and harness adapter.With this option you get more power to run your lights and other accessories. If you get this option it will be installed in your engine–Click Here. The engine comes stock with an 8 pole stator.
  
  
• Option 5:Performance Exhaust:You can get the BDX performance exhaust for any of the engines above for an estimated 10% to 15% increase in raw power–see video!See details.See our video:click here.

• Option 6: PowerPak:The PowerPakincludes all of the other options above, with the exception of the 11 pole stator. Components will be installed into your engine(except A12 CS in stock engines). It also includes additional roller weights and a 2000 RPM spring, performance CDI and coil.Click hereto see.

ADDITIONAL IMPORTANT OPTIONS:

• Shipping Insurance: We strongly recommend getting shipping insurance. Also see extra packing below..Click herefor shipping insurance.
  
  
• Double Boxing and Double Padding Your Engine:With this option we double box your engine in a second sturdy box and add extra 1 to 2 inches of styrofoam for extra protection.Click herefor double boxing.

Read article on how displacement relates to more power.

How big bore kits & strokers work
TAKE A LOOK AT THIS COMPARISON

Stock GY6 Engine

BDX Performance Engine

We build and test our 175cc big bore engine in our facility in Virginia.

We disassemble your 150cc engine, bore the case to make it larger so that we can install a 62mm big bore piston and cylinder. Then we re-assemble and test your engine.

Boring the Case for the 62mm Cylinder and Piston

62mm 175cc Big Bore Kit

Be sure toread the articleon how displacement affects your power.

Click hereto see additional important information regarding this engine.

Before purchasing an ebay engine, that could be a 125cc, let usrebuild your enginefor $199 with a one year warranty!