The 10 Best Raptor 660 720 Big Bore Kits (2022 reviews)

Compared with other kit in this category, the Rutu Raptor 660 720 Big Bore Kit has a design with broader appeal. The rutu raptor 660 720 big bore kit is good for cylinder head and it is easy to install. Make sure this fits by entering your model number. Also, this works great and there is much more.

Lastly, the rutu raptor 660 720 big bore kit is great for intake manifold and it comes with an oil pump.

Most buyers quickly discovered that the kit comes in 64mm n 69mm for 50cc, digital caliper is also available on amazon. Furthermore, a few also found that the kit included everything but jets. Also, they say that the kit will work for your bike. Overall, many buyers have used the rutu raptor 660 720 big bore kit for more than a few months without any problems, and it shows no sign of giving up.

Top Customer Quotes:

We have 2 versions, 64mm and 69mm valve length version.s Please confirm before ordering.
Easy installation with racing ac cdi, ignition coil and racing spark plug included.
This fits any 49cc w/gy6 style engine.
This is a gy6 50cc. Yes, it will for sure fit and work great.

Best For Great Price: Bbr Motorsports Raptor 660 720 Big Bore Kit

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Next on the list, we've got yet another kit that manages to win our hearts. It's the Bbr Motorsports Raptor 660 720 Big Bore Kit and it's widely considered as the kit that has the most suitable features. The bbr motorsports raptor 660 720 big bore kit is designed for a great price and it is great with basic mechanics. Make sure this fits by entering your model number. In addition, this fits the following applications.

Most importantly, the bbr motorsports raptor 660 720 big bore kit provides you with great instructions and it is used for torque specs.

Almost all buyers quickly discovered that the kit has awesome customer service and also it is obviously not going to work for you. Moreover, a few also found that the kit would only work on the xr100 and crf100 bikes. Also, a few say that the kit makes no mention of setting the ring end gap for the kit. In conclusion, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:

This is made for air filters and it is ready to ship.
This is the kit to get for easy bolt on power.
Lot of satisfied buyers.

RELATED: Best 170 Cc Big Bore Kits

Best With Thread Lock: Top Notch Parts Raptor 660 720 Big Bore Kit

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Compared with other kit in this category, the Top Notch Parts Raptor 660 720 Big Bore Kit has a convenient design. The top notch parts raptor 660 720 big bore kit has a ceramic coating providing superior heat resistance which will extend the life span of the piston. The manufacturer says: We ship directly from the USA, not like some sellers who say they do but don't. Also, this is great for fuel filter, looks good and it comes with a gasket maker. Most importantly, the top notch parts raptor 660 720 big bore kit is ideal for best quality and it fits with a thread lock.

Most buyers opine that the kit is cheaper than anywhere else. In addition, they say that the kit is easy to rebuild and parts are available everywhere. Obviously, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:

This is a perfect and fast delivery.
Replaces oem number 12100-kcy-670 12191-kcy-672 13011-kcy-670 13101-kcy-670 90601-ka5-000 13111-kcy-670 12251-hn1-003 12391-kcy-671 14560-kcw-851.
Parts fit: 1999 - 2008 honda trx 400ex.

RELATED: Best Big Bore Gasket Kits

Best For Spark Plug: Weiyingsi Raptor 660 720 Big Bore Kit

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Best part: Weiyingsi Raptor 660 720 Big Bore Kit costs comparatively little and it is available to ship in 24 hours. The weiyingsi raptor 660 720 big bore kit comes with an easy-start-style recoil puller. Manufacturer says: For fast intake and exhaust we use a high 2-groove hp performance cylinder block and twin-window piston, excellent light-weight brings fast power transfer. Also, it works great, cleans with great power and it is black.

The kit can check for new updates and it is great for engine oil. Moreover, it looks good and it is great with pocket rocket. Most importantly, the weiyingsi raptor 660 720big borekit fired right up and it is made with great service.

Most customers found that the kit is perfect for pocket bike. Also, a few strongly agree that the kit is easy to start and runs great. In short, the tone of buyers is very positive and we believe that the kit suits the purpose.

Top Customer Quotes:

This is, it matters who makes it work.
New update: all engines come with an easy-start-style recoil puller.
Oil gas mixture: 1:25 max power:2.6hp/7000rpm max torque: 2.8 n.m./5500rpm.
This will fit in anything you want if you know how to fabricate and weld.

Best For Worth The Money: Gpa Motors Raptor 660 720 Big Bore Kit

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The Gpa Motors Raptor 660 720 Big Bore Kit's material feels more premium than its price would suggest. Also, it is always compatible for easy installation. The Manufacturer says: You can buy our number 1 quality rebuild kits online, perfectly fitted to your vehicle, This product is produced by Oem factories. Finally, the gpa motors raptor 660 720 bigbore kit includes piston kit, gasket kit, oe type cylinder.

Overall, for most customers, Gpa Motors ' product was just what they wanted.

Why We Like This:

The cylinder displacement is 686cc / piston compression 10.0:1.
The bore cylinder and stroke is 102.00mm x 84.00mm.
Fits: grizzly 660 02-08, raptor660 01-05, rhino 660 04-07.
Oem replacement: 3yf-11181-00-00, 5km-11310-00-00, 3yf-11351-00-00, 2c6-11603-00-00, 93450-24028-00, 3yf-11631-00-x0, 3yf-11633-01-00, 90201-102g9-00, 90105-10649-00, 90105-09648-00, dpr-8ea90-00-00, 3yf-11310-01-00.

Best With Fast Shipping: Niche Raptor 660 720 Big Bore Kit

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The Niche Raptor 660 720 Big Bore Kit's material feels more premium than its price would suggest. The niche raptor 660 720 big bore kit includes cylinder, piston (10:1), piston rings, wristpin, circlips (2), head gasket and base gasket. Make sure this fits by entering your model number. Moreover, it includes a brand new 102mm cylinder, ngk spark plug, 10.

The kit includes all the parts shown to make a successful installation. Most importantly, the niche raptor 660 720 big bore kit includes o-ring, cylinder studs (4), cylinder stud washers (4) and ngk spark plug.

They strongly agree that the power difference is easily felt and this kit made it possible and easy.

Why We Like This:

You don't want to end up with over heating problems down the road.
1 piston kit & high performance gasket set for an easy installation.
The Manufacturer says: our kits require no modification when you receive them.
It will just slide into your case without hassle.

Compatible With The Following Models: 8Ten Raptor 660 720 Big Bore Kit

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The 8Ten Raptor 660720 Big Bore Kit's material feels more premium than its price would suggest. Furthermore, the kit comes with either one or two cylinders. Make sure this fits by entering your model number. Finally, the 8ten raptor 660 720 big bore kit is suitable for placement on a vehicle and it is great for high quality.

Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Customers say that getting a raptor 660 piston kit and raptor 660 720 big bore kit, along with kit is useful.

Why We Like This:

High quality replacement cylinder with a 102mm big bore.
Replaces part numbers: yamaha 5km-11310-00-00.
Compatible with: yamaha 2004-2007 rhino 660.

Best For High Durability: Goofit Raptor 660 720 Big Bore Kit

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Not everyone likes to purchase kit for their daily usage, but the Goofit Raptor 660 720 Big Bore Kit would be an anomoly. The goofit raptor 660 720big borekit includes a high-compression hardened aluminum piston kit, gasket kit. Manufacturer says: We sincerely apologize to you for returning the exchange or refund caused for any reason. Further, it is designed for high durability and it is durable. Finally, the goofit raptor660 720 big bore kit has a professional factory production line, strictly controls the quality, and passes the installation test.

Why We Like This:

Complete 686cc bigbore cylinder kit.
Replacement for 700 hs700 700cc atv utv raptor 660 660r yfm660r 2002-2008.interchange part number:3yf-11181-00-00,5km-11310-00-00,3yf-11351-00-00,2c6-11603-00-00.
The manufacturer says: we are always available to help our customers.
Manufacturer says: we attach great importance to every customer.

Best For Big Bore Cylinder: Waverspeed Raptor 660 720 Big Bore Kit

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Compared with other kit in this category, the Waverspeed Raptor 660 720 Big Bore Kit has a convenient design. The waverspeed raptor 660 720 big bore kit is pre-honed and ready to drop in, no modifications required * high-compression hardened aluminum piston kit. Complete 434cc big bore cylinder piston and gasket kit. Further, it is made of high-strength material, can withstand high temperature,sssss high pressure and corrosion for a longer life. Lastly, the waverspeed raptor 660 720 big bore kit is easy to use, It is good for premium quality and has an excellent design.

"Considering it ’s about 400 dollars cheaper than the name brand. " - says, one customer. In short, buyers found this to be one of the best kits for daily purposes.

Why We Like This:

[Package contents] - cylinder block,piston,piston pin,piston rings,o-ring,head gasket,base gasket,circlips,washers.
[Part number] - 11191-13e00, 1241-29f00, 12140-29f00, 11210-29f20-0f0, 12111-29f00-0f0, 09160-10082, 11141-29f01, 12151-24f10, 09381-20004.
Lot of satisfied buyers.

Best For Good Fit: Mallofusa Raptor 660 720 Big Bore Kit

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Mallofusa line of kits comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Mallofusa Raptor 660 720 Big Bore Kit is designed for good fit and it comes with a package included cylinder. Cylinderpistonpiston ringswristpincirclipshead gasketbase gaskethead cover gasket(as picture show)please make sure that this cylinder kit can fit for your vehicle before placing the order. This cylinder piston top end kit has been honed, and comes ready to assemble. Finally, the mallofusa raptor 660 720 big bore kit is easy to assemble and it is fitment.

To sum up, buyers found this to be one of the best kits for daily purposes.

Why We Like This:

Complete standard - sized cylinder and piston kit with gaskets, cylinder 8650mm bore, 99.
New and hot releases.