TWISTER HAMMERHEAD GO-KART ENGINE, GY6 150CC EXTERNAL REVERSE ENGINE--GUARANTEED FIT
This is the 150cc GY6 engine for Twister Hammerhead--Guaranteed Fit!
BDX 150CC GY6 ENGINES ARE GUARANTEED, VERIFIED AND CERTIFIED TO BE 150CC ENGINES:
WARNING: If you are considering purchasing a GY6 engine from eBay, Amazon or any other USA seller you could receive a 125cc engine instead of a 150cc and you would never know it. Since 2006 China has a history of sending GY6 125cc engines in place of GY6 150cc engines. The engines look identical from the outside. BDX Performance is the only engine seller in the USA who disassembles and visually inspects engines to ensure that they are 150cc. We unbox and dissemble approximately 50% of every engine shipment that we receive as we convert these into 175cc engines. And we have caught some engines that are GY6 125cc being sold as GY6 150cc--see below. Don't play Russian roulette with your money. Get a guaranteed, verified and certified GY6 engine from BDX. The cylinder on the left is an actual cylinder that we pulled off of an engine that we purchased as a 57mm GY6 150cc engine and was actually a 52mm GY6 125cc engine.
Your 150cc engine comes with an American made Uni-Filter, which is a high performance filter that ensures clean air to your engine, and also get 4 sets of roller weights. If you are buying a new engine there is a good chance that your old one failed from a poor air filter.
STANDOFF FOR MUFFLER. NO KICK START TO INTERFERE WITH YOUR EXHAUST!
LONGER DRIVE SHAFT TO ACCOMMODATE A REVERSE GEAR BOX BUT WILL WORK WITHOUT A GEAR BOX ALSO.
NEW AMERICAN MADE UNI-FILTER FOR CLEAN AIR TO YOUR ENGINE. SEE WHY A NEW UNI-FILTER IS MANDATORY FOR ALL NEW ENGINES. DON'T GET AN ENGINE WITHOUT ONE.
FOUR SETS OF ROLLER WEIGHTS FOR YOU TO OPTIMIZE TOP END SPEED AND LOW END TORQUE OF YOUR VEHICLE (9G, 10G, 12G AND 14GRAMS)
OPTION 2: PERFORMANCE TRANSMISSION PLUS OPTION 1:
This option includes the High Performance Transmission for Better Power Transfer to the Wheels: 1500 PRM Spring and 10 gram rollers, performance variator and high stall clutch and thus more torque and more power due to more efficient power transfer. See price options at the top of the page.
OPTION 3 - 175CC ENGINE PLUS ALL ITEMS FROM OPTIONS 1 & 2:
We can even convert your new 150cc engine into a 175 or 184cc racing engine. Both of these engines come with the performance transmissions and the Uni-Filter. See price options at the top of the page:
MORE CC MEANS MORE POWER
Read our article on how displacement relates to more power.
How big bore kits & strokers work
TAKE A LOOK AT THIS COMPARISON
Stock GY6 Hill Climb
BDX 184cc GY6 Hill Climb
We disassemble your 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.
OPTION 4 175CC ENGINE PLUS PERFORMANCE EXHAUST AND ALL ITEMS FROM OPTIONS 1, 2 & 3:
We can rebuild your engine. Call us!
Be sure to read our article on how displacement affects your power.
Frequently asked questions are answered here.
[*] 60 Day Parts Warranty
Please read our Warranty policy.
No returns on engines.
Engine is shipped DRY with no oil.
Be sure to add 750ml of 10w40 to the crankcase and 120ml of 80w90 to the gear case before starting.
Remember to adjust valves after break-in period.
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