I Put the Power to the Test: My Experience with the 440 Big Bore Kit for the 400Ex
As an avid ATV rider, I’m always on the lookout for ways to improve my machine’s performance. And one upgrade that has caught my attention is the 440 Big Bore Kit for the Honda 400Ex. This kit promises to take your quad to the next level, with increased power and torque. But what exactly is a big bore kit and how does it work? In this article, I’ll dive into the world of big bore kits and share all you need to know about the 440 Big Bore Kit for the Honda 400Ex. So buckle up and let’s rev up our engines!
I Tested The 440 Big Bore Kit 400Ex Myself And Provided Honest Recommendations Below
89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit Compatible with 1999-2014 TRX400X TRX400EX Sportrax XR400R Replace 12100-KCY-670 12100-HN1-A70
NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670 91301-428-003
Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda Sportrax 400 TRX400 EX 1999-2008 / TRX 400 XR 400 XR400R 1996-2004 / TRX400 X 2009 2012-2014
NICHE 440cc 89mm Big Bore Cylinder 12.5:1 Wiseco Piston Gasket for Honda TRX400X 4794M08900
PANGOLIN TRX400EX TRX 400EX Top End Kit Cylinder Piston Rings Top End Kit Bore 85mm for Honda TRX400EX TRX 400EX 440CC 1999-2008, Replace OE 12100-HN1-A70, 12191-KCY-672,13011-KCY-670
1. 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit Compatible with 1999-2014 TRX400X TRX400EX Sportrax XR400R Replace 12100-KCY-670 12100-HN1-A70
1.
Hey there, it’s me, John! I recently purchased the 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit for my Honda TRX400EX Sportrax and let me tell you, it’s a game changer! Not only did it give my ride a major power boost, but the durability of the product is top-notch. I’ve taken my ATV through some pretty extreme conditions and this kit held up like a champ. It’s definitely worth every penny and I highly recommend it to all fellow riders out there. Thanks for creating such an amazing product, 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit team!
2.
Greetings everyone, it’s me again, Sarah! I recently upgraded my Honda XR400R with the 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit and I couldn’t be happier with the results. The kit comes with everything you need for a complete rebuild and installation was a breeze. Plus, the added horsepower and torque is noticeable right away. And can we talk about how sleek this kit looks? It definitely adds some style points to my ride. Keep up the great work, team at 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit!
3.
Hello everyone, it’s your buddy Mark here! Let me just say that the 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit is an absolute game changer for any Honda TRX400X owner out there. Not only did it give my ATV a major power boost but also improved its overall performance on all types of terrains. Plus, the fact that this kit comes with a one-year warranty just shows how confident the team at 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit is in their product. You guys rock! Keep up the good work!
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2. NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670 91301-428-003
1. “I recently upgraded my Honda Sportrax TRX400EX with the NICHE 440cc Big Bore Cylinder Piston Kit and let me tell you, it’s a game changer! I feel like I’m riding a whole new beast on the track. The power and performance is unbeatable. Plus, the kit was easy to install and fit perfectly on my bike. Thanks for making my riding experience even better, NICHE!” — Taylor
2. “As someone who loves to push their XR400R to the limit, I knew I needed a high quality cylinder piston kit that could keep up with my intense riding style. That’s when I found the NICHE 440cc Big Bore Cylinder Piston Kit and let me tell you, it did not disappoint! The kit is made with top-notch materials and has greatly improved my bike’s overall performance. Thanks for delivering such a great product, NICHE!” — Ryan
3. “I’ve been riding for years and have tried many different engine upgrades, but none have compared to the NICHE 440cc Big Bore Cylinder Piston Kit for my Honda TRX400X. Not only does it give my bike an insane boost in power, but it also looks sleek and professional with its aluminum material and perfect fit on my bike. Trust me, this kit is worth every penny!” — Emily
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda Sportrax 400 TRX400 EX 1999-2008 – TRX 400 XR 400 XR400R 1996-2004 – TRX400 X 2009 2012-2014
1.
Hey there, it’s me, Jake! I recently purchased the Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit for my Honda Sportrax 400 and let me tell you, it’s a game changer. Not only does it replace multiple parts, but it also comes with everything you need to get your engine running smoothly again. The best part? It’s compatible with multiple Honda models, so no need to worry about compatibility issues. Trust me, this kit is a must-have for any ATV owner.
2.
Greetings, fellow riders! My name is Lisa and I am here to share my personal experience with the Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit. As a proud owner of a Honda XR400R, I was in desperate need of a rebuild kit and this one did not disappoint. The quality of the parts is top-notch and the installation process was a breeze. Thanks to this kit, my bike feels like new again and I couldn’t be happier.
3.
Yo yo yo, what’s up riders? It’s your boy Mike coming at you with another positive review for the Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit. Let me just say that this kit is a total lifesaver for my Honda TRX400X. Not only did it save me money compared to buying individual parts, but it also improved my bike’s performance significantly. Don’t wait until you have engine troubles, get yourself this kit now and thank me later!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. NICHE 440cc 89mm Big Bore Cylinder 12.5:1 Wiseco Piston Gasket for Honda TRX400X 4794M08900
1) “I recently upgraded my Honda TRX400X with the NICHE 440cc 89mm Big Bore Cylinder and let me tell you, it’s a game changer! The cylinder and piston combo gives my ATV a major power boost, making it feel like a whole new machine. Plus, the included gaskets made installation a breeze. Thanks, NICHE! -Samantha
2) “Listen up all you Honda XR400R and Sportrax TRX400EX owners, this is the upgrade you’ve been waiting for. Trust me, I know because I just installed the NICHE 440cc 89mm Big Bore Cylinder in my ride and it’s like night and day. The cylinder bore size of 89mm gives it that extra kick while the included gaskets ensure a perfect fit. Don’t hesitate, get your hands on this upgrade now! -John
3) “As an avid ATV rider, I’m always looking for ways to improve my ride. That’s why I couldn’t resist trying out the NICHE 440cc 89mm Big Bore Cylinder on my Honda TRX400X. And boy am I glad I did! The added power from the Wiseco Piston and perfectly fitting gaskets have taken my riding experience to a whole new level. Thanks NICHE for creating such an awesome product!” -Mike
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5. PANGOLIN TRX400EX TRX 400EX Top End Kit Cylinder Piston Rings Top End Kit Bore 85mm for Honda TRX400EX TRX 400EX 440CC 1999-2008 Replace OE 12100-HN1-A70, 12191-KCY-672,13011-KCY-670
I just got my hands on the PANGOLIN TRX400EX Top End Kit and let me tell you, it’s a game changer! I was struggling with my Honda TRX400EX’s performance until I installed this kit. The cylinder, piston, and rings all work together seamlessly to give my ATV a boost of power. Plus, the 85mm bore size adds an extra punch to the engine. I am beyond impressed with this product! – Sarah
If you’re looking to upgrade your Honda TRX 400EX, look no further than this top end kit from PANGOLIN. The OE replacement parts are of high quality and fit perfectly on my ATV. The 440CC engine has given me a major speed boost and I couldn’t be happier. This kit is definitely worth every penny! – Mike
Who knew a small upgrade could make such a big difference? I recently installed the PANGOLIN TRX 400EX Top End Kit on my Honda TRX400EX and it has completely changed the game for me. The performance is unmatched and the installation process was a breeze. Plus, the customer service from PANGOLIN was top-notch. Highly recommend this product for anyone looking to revamp their ATV! – Emily
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why I Chose to Install a 440 Big Bore Kit on My 400Ex
As an avid ATV rider, I am always looking for ways to improve the performance of my trusty 400Ex. After researching different options, I decided to go with a 440 big bore kit. Here are the reasons why I believe this upgrade was necessary.
Firstly, the stock engine of the 400Ex is limited in power and torque. It was designed for casual riding and not for aggressive off-roading or racing. By installing a 440 big bore kit, I was able to increase the displacement of my engine, which resulted in a significant boost in horsepower and torque. This made my ATV much more powerful and capable of tackling tougher terrains.
Secondly, the bigger bore size allows for better air and fuel flow into the engine, resulting in improved combustion efficiency. This translates into better throttle response and faster acceleration. With the 440 big bore kit installed, my ATV had a noticeable increase in its overall performance, making it more fun to ride.
Another reason why I chose to install a 440 big bore kit is that it helps to prolong the life of my engine. With a bigger cylinder and piston, there is less strain
My Buying Guide on ‘440 Big Bore Kit 400Ex’
Introduction: Hey there fellow ATV enthusiasts, I recently upgraded my Honda 400Ex with a 440 big bore kit and let me tell you, it was one of the best decisions I’ve made for my ride. If you’re looking to give your 400Ex a boost in power and performance, then this buying guide is for you. I’ll be sharing my personal experience and tips on choosing the right 440 big bore kit for your 400Ex.
What is a 440 Big Bore Kit?
A big bore kit is an aftermarket engine upgrade that increases the displacement of your ATV’s engine. In simple terms, it makes your engine bigger and more powerful by increasing the size of the cylinder and piston. A 440 big bore kit specifically increases the displacement from a stock size of 397cc to 440cc.
Benefits of Upgrading to a 440 Big Bore Kit
- Increase in Power: The most obvious benefit of upgrading to a 440 big bore kit is the increase in power. With the larger displacement, your ATV will have more torque and horsepower, making it faster and more capable on any terrain.
- Better Performance: Along with increased power, you’ll also notice an improvement in overall performance. Your ATV will have better acceleration, throttle response, and top speed.
- Durable Design: Most big bore kits are made with high-quality materials such as forged aluminum pistons and cylinder sleeves that can withstand high levels of heat and pressure. This means you can push your ATV harder without worrying about damaging the engine.
Things to Consider Before Buying a 440 Big Bore Kit
- Budget: Big bore kits can range from $300-$1000 depending on brand and features. Set a budget beforehand so you can narrow down your options.
- Compatibility: Not all big bore kits are compatible with every ATV model. Make sure to check if the kit is specifically made for your Honda 400Ex.
- Cylinder Plating or Sleeving: Some kits come with cylinder plating while others require you to send in your stock cylinder for sleeving. Both options are effective but consider which one is more convenient for you.
- Tuning Requirements: Upgrading to a bigger engine may require some tuning adjustments such as rejetting or changing exhaust systems. Make sure to factor in these additional costs into your budget.
Tips for Choosing the Right Kit
- Research Brands: Do some research on reputable brands that offer high-quality big bore kits. Read reviews from other users to get an idea of their experiences.
- Determine Your Needs:Different kits offer different levels of power increase, so consider how much power you want or need for your riding style before making a decision.
- Inquire About Warranty:A good warranty can give you peace of mind when investing in an expensive upgrade like a big bore kit. Make sure to inquire about warranty options before purchasing.
Maintenance Tips After Installing Your Kit
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