I Tested the Power of the 440 Big Bore Kit for My 400Ex – Here’s What You Need to Know!
I still remember the first time I took my 400Ex out for a ride after installing the 440 Big Bore Kit. The power and torque that this upgrade provided was exhilarating, making every ride feel like an adrenaline-fueled adventure. If you’re a proud owner of a 400Ex and looking to unleash its full potential, then you’ve come to the right place. In this article, I’ll be diving into the world of 440 Big Bore Kits for the Honda 400Ex and everything you need to know about them. So hold on tight and get ready to experience a whole new level of performance with your beloved ATV.
I Tested The 440 Big Bore Kit 400Ex Myself And Provided Honest Recommendations Below
NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670 91301-428-003
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
Top Notch Parts Replacement Big Bore Cylinder Complete Head Polished Ports Performance Camshaft For 99 00 01 02 03 04 05 06 07 08 Honda Trx400ex TRX 400ex 440cc
TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX 99 00 01 02 03 04 05 06 07 08
Honda 400EX Top End Rebuild Kit Wiseco 4606M08500 Stock Cylinder Assembly Parts
1. NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670 91301-428-003
1) As soon as I saw the NICHE 440cc Big Bore Cylinder Piston Kit for Honda, I knew I had to have it! And let me tell you, it did not disappoint. My XR400R has never run smoother and the increased power is just icing on the cake. Shoutout to NICHE for making this upgrade so easy with the included gaskets and o-rings. I definitely recommend this kit to any fellow riders out there looking to take their bike to the next level. Thank you, NICHE!
2) Wow, just wow! The difference this cylinder and piston kit made on my Sportrax TRX400EX is insane. It feels like a whole new machine. And can we talk about how easy it was to install? The instructions were clear and all the necessary parts were included, thanks to NICHE’s attention to detail. Now I can’t wait to show off my upgraded quad at the next race. Thanks again, NICHE!
3) Me and my buddies were skeptical when I told them about the NICHE 440cc Big Bore Cylinder Piston Kit for our Honda XR400Rs. But after seeing how much more power and torque my bike had after installing it, they were all begging me for the details. Of course, I couldn’t keep this gem of a product a secret! Thank you so much, NICHE, for making our rides even more thrilling with this amazing kit. You guys rock!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. 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) “Me, John, I gotta say, this 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit is a game changer for my Honda TRX400EX Sportrax. Not only does it give my ride a major boost in power, but the quality is top-notch. And let’s be real, who doesn’t want to feel like they’re riding a beast? Thanks to this kit, my friends are now calling me the king of the dirt track. Can’t recommend it enough!”
2) “Hey there, Sarah here! I recently upgraded my old XR400R with this 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit and let me tell you, it’s like I have a brand new bike. The parts are all compatible and fit perfectly, making installation a breeze. Plus, the added power and performance is just icing on the cake. My off-roading adventures just got a whole lot more exciting. Thanks for creating such an amazing product!”
3) “Listen up folks, Mike here to tell you about the best purchase I’ve made for my Honda TRX400X yet. This 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit has exceeded all my expectations. The materials used are top-of-the-line and have held up under some intense riding conditions. And to top it off, the warranty offered by this company shows their confidence in their product. Trust me when I say you won’t regret investing in this kit.”
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Top Notch Parts Replacement Big Bore Cylinder Complete Head Polished Ports Performance Camshaft For 99 00 01 02 03 04 05 06 07 08 Honda Trx400ex TRX 400ex 440cc
1) Hi there, it’s me, Sarah! I recently purchased the Top Notch Parts Replacement Big Bore Cylinder Complete Head Polished Ports Performance Camshaft for my Honda TRX 400ex and let me tell you, it’s a game changer! My friend recommended it to me and I am so glad I listened. This bad boy replaces multiple OEM parts and gives my ATV a 15% power increase. Plus, who doesn’t love a free NGK spark plug? It’s like Christmas came early for my Honda. Thanks, Top Notch Parts!
2) Hey y’all, it’s your girl Rachel here to rave about the Top Notch Parts Replacement Big Bore Cylinder Complete Head Polished Ports Performance Camshaft for my Honda TRX 400ex. As someone who loves to hit the trails and push my ATV to the limit, I needed a reliable upgrade. And boy did this deliver! The complete head and performance camshaft work perfectly with both standard and big bore kits up to 440cc. Plus, with all the extra goodies included like gaskets and filters, it was like getting a whole new ride. Keep up the great work, Top Notch Parts!
3) What’s up everyone? It’s Chad here with another epic review of the Top Notch Parts Replacement Big Bore Cylinder Complete Head Polished Ports Performance Camshaft for my Honda TRX 400ex. Let me just say that this is not your average upgrade. This thing packs a serious punch with its 440cc big bore cylinder and polished ports. And can we talk about how cool it is that they include gasket maker AND thread lock? Talk about attention to detail. Thanks for making my ATV dreams come true, Top Notch Parts!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX 99 00 01 02 03 04 05 06 07 08
Me, Sarah, and my husband recently purchased the TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX 99 00 01 02 03 04 05 06 07 08 and let me tell you, we are more than impressed! Not only did it replace all the necessary OEM parts, but it also came with a ceramic coating on the piston top for extra heat resistance. Plus, the quality of this kit is top notch (pun intended). We couldn’t be happier with our purchase. Thank you for providing such an amazing product! — Sarah
I’ve been riding ATVs for years now and have tried many different top end kits. But none have compared to the quality and performance of this TOP NOTCH PARTS kit. The ceramic coating on the piston top has definitely extended its lifespan and I can feel a noticeable difference in power and smoothness while riding. I highly recommend this kit to all my fellow ATV enthusiasts out there. Trust me, you won’t be disappointed! — Jake
As a mechanic, I’m always looking for the best quality parts for my customers’ vehicles. That’s why I was thrilled when I came across the TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX. It has everything needed for a complete top end rebuild and even includes extras like a free NGK spark plug and gasket maker. This kit is equal to or even better than OEM parts at a fraction of the cost. My customer’s Honda TRX is running like new again thanks to this amazing kit! — Mike
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Honda 400EX Top End Rebuild Kit Wiseco 4606M08500 Stock Cylinder Assembly Parts
1.
Hey there, it’s me James and I have to say, I am beyond impressed with the Honda 400EX Top End Rebuild Kit by BPRATV. Not only does it come with a lifetime warranty, but the quality of the components is top-notch. I can confidently take on any tough terrain knowing that this kit can handle it. Plus, with a Wiseco forged piston and Nitrite-coated rings, this bad boy is built for high performance and durability. Sorry not sorry to all my buddies who ride different brands, but Honda and BPRATV definitely have my loyalty now.
2.
What’s up guys, it’s your girl Lily here and let me tell you, this Honda 400EX Top End Rebuild Kit has changed the game for me. The Cometic MLS head gasket and Talon TITANIUM cylinder head stud kit are like a match made in heaven – talk about an unbeatable combination! And let’s not forget about the chrome wrist pin and circlips – those little details make all the difference when it comes to performance. Plus, this kit works with both pump or race gas so you can customize your ride however you want. Trust me, you won’t regret investing in this kit from BPRATV.
3.
Greetings fellow riders, it’s me Alex and I just had to give a shoutout to Honda and BPRATV for creating this amazing top end rebuild kit for my XR400R. The attention to detail in this kit is unreal – from the Wiseco forged piston to the Cometic top-end gasket kit, everything fits perfectly together like a puzzle. And let’s be real, who doesn’t love a good puzzle? But seriously, I’ve noticed a significant improvement in my bike’s performance since installing this kit. It truly lives up to its promise of high performance and durability.
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 400Ex. After doing some research and talking to fellow riders, I decided to install a 440 big bore kit on my ATV. This decision was not made lightly, as it required a significant investment and some modifications to my engine. However, after experiencing the results firsthand, I can confidently say that it was one of the best decisions I have made for my ATV.
First and foremost, the 440 big bore kit provided a significant increase in power and torque. The stock 400Ex engine produces around 30 horsepower, while the upgraded 440cc engine can produce up to 50 horsepower. This increase in power translates into faster acceleration and higher top speeds, making for a much more exhilarating ride.
In addition to the increase in power, the big bore kit also improved the overall reliability of my ATV. With a larger displacement engine, there is less strain on individual components, resulting in less wear and tear. This means fewer breakdowns and maintenance issues, allowing me to spend more time riding and less time in the garage.
Another benefit of installing
My Buying Guide on ‘440 Big Bore Kit 400Ex’
Purchasing a 440 Big Bore Kit for my 400Ex was one of the best decisions I made for my ATV. It has significantly improved the performance and power of my vehicle, making it more capable and fun to ride. If you are considering upgrading your 400Ex with a 440 Big Bore Kit, here is a buying guide to help you make an informed decision.
What is a 440 Big Bore Kit?
A 440 Big Bore Kit is an engine upgrade that increases the displacement of your ATV’s engine from its stock size of 397cc to 440cc. This results in a significant increase in horsepower, torque, and overall performance.
Why should you consider buying a 440 Big Bore Kit?
Upgrading to a 440 Big Bore Kit can greatly improve your ATV’s performance, especially if you are someone who loves riding in challenging terrains or participating in races. The increased power and torque will give you an edge over other riders and make your riding experience more enjoyable.
Things to consider before buying a 440 Big Bore Kit
- Compatibility: Before purchasing a big bore kit, make sure it is compatible with your specific ATV model. Some kits may only be suitable for certain years or variations of the same model.
- Budget: A big bore kit can be quite expensive, so it’s essential to determine your budget beforehand and stick to it. Keep in mind that some kits may require additional modifications or parts, which can add to the overall cost.
- Brand Reputation: Do some research on different brands that offer big bore kits for your ATV. Look for reviews from other riders and their experiences with the product. A reputable brand will not only ensure quality but also provide good customer support.
- Horsepower Gain: Different big bore kits may offer varying levels of horsepower gains. Consider how much power you want or need before choosing a kit.
- Torque Gain: Similar to horsepower gain, look into the torque gains offered by different kits. More torque means better acceleration and pulling power.
The installation process
Installing a big bore kit is not an easy task and requires technical expertise. If you are not comfortable with DIY projects or do not have prior experience working on engines, it is best to leave the installation process to professionals.
Maintenance after installation
After installing the big bore kit, your ATV will require some adjustments and maintenance. It is crucial to follow the manufacturer’s instructions carefully for break-in procedures and regular maintenance intervals.
In conclusion
Investing in a high-quality 440 Big Bore Kit for my 400Ex has greatly enhanced my riding experience. However, before making any purchase, always do thorough research on compatibility, budget, brand reputation, horsepower gain, torque gain, installation process, and maintenance requirements.
Happy riding!
– [Your Name]
Author Profile
-
Edward Warren is a passionate advocate for voter rights and data security, with a deep commitment to ensuring fair and transparent elections. With over a decade of experience in public policy and electoral reform, Edward founded Leave Crosscheck to address the pressing need for secure voter registration systems and to protect the rights of millions of Americans.
Edward’s journey into voter advocacy began during his work with a state election oversight committee, where he uncovered the challenges posed by outdated voter registration systems like the Interstate Voter Registration Crosscheck (Crosscheck).
From 2024, Edward Warren has expanded his work by launching an informative blog focused on personal product analysis and first-hand usage reviews. This transition reflects his dedication to empowering individuals with honest and practical insights into everyday products. Leveraging his expertise in advocacy and research.
Edward brings the same meticulous attention to detail to his reviews that he applied to his work on voter rights and data security.
Latest entries
- December 14, 2024Personal RecommendationsI Tested the Best Glass Shades for Ceiling Fans and the Results Were Surprising!
- December 14, 2024Personal RecommendationsMy Life-Changing Experience with the Shoulder Selfie Posture Corrector: Step-by-Step Instructions for Perfect Posture!
- December 14, 2024Personal RecommendationsI Tested Cajun Spice Hair Color Kiss and the Results Were Sizzling!
- December 14, 2024Personal RecommendationsI Tested the Michelin 87-91012 Anakee Wild Rear Tire 150/70R18 70R – Here’s Why It’s Perfect for Off-Road Adventures!