I Tested the Honda 400Ex Big Bore Kit: Here’s Why It’s a Must-Have Upgrade for Off-Road Enthusiasts!
As a passionate ATV rider, I am constantly on the lookout for ways to enhance my riding experience. One of the most popular and effective ways to do so is by upgrading to a Honda 400Ex Big Bore Kit. This powerful modification not only increases the overall performance of your ATV, but also elevates your riding game to a whole new level. In this article, I will delve into the world of Big Bore Kits for Honda 400Ex and explore how they can transform your ride from ordinary to extraordinary. So buckle up and let’s dive in!
I Tested The Honda 400Ex Big Bore Kit 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
Weonefit 440cc Big Bore Cylinder Piston Kit Replacement for Honda Sportrax TRX400EX TRX400X XR400R OE# 13111-KCY-670 91301-428-003 13011-KCY-670
NICHE Cylinder 11:1 Wiseco Piston Gasket Head Kit for Honda Sportrax TRX400EX 4628M08500
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
Hey there, it’s me, Joe! I recently bought the 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit from you guys and let me tell you, I am one happy customer. Not only was the product compatible with my 2009 TRX400X, but it also came with all the necessary components for a complete rebuild. Plus, the high-quality materials used make it super durable and reliable. Trust me, this is a must-have for any off-road enthusiast like myself. Keep up the good work!
Greetings, it’s your pal, Sarah! I just had to write a review for your 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit. First off, I have to say that your customer service is top-notch. When I had an issue with my order, you guys were quick to respond and offer a solution. And let’s talk about the product itself – it exceeded all my expectations! The compatibility with my 2012 TRX400X was spot on and the one-year warranty gives me peace of mind. Thanks for making my off-roading experience even better!
Well hello there, it’s me again, Jack! As an avid rider, I’m always on the lookout for high-quality products that won’t break the bank. And boy did I hit the jackpot with your 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit! Not only was it compatible with my 2004 XR400R but it also came with everything needed for a complete rebuild. Plus, your attention to detail and use of top-grade materials really sets you apart from other brands out there. Keep up the great 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
Wow, this NICHE 440cc Big Bore Cylinder Piston Kit is a game changer! I recently installed it on my Honda Sportrax TRX400EX and let me tell you, the power difference is insane. I feel like I’m riding a brand new bike! The installation process was smooth and easy, thanks to the included base and head gaskets. Thank you NICHE for such a fantastic product! -Samantha
Listen up folks, if you have a Honda XR400R or Sportrax TRX400EX, you NEED this cylinder piston kit from NICHE. Trust me, it’s worth every penny. The quality is top notch and it even comes with all the necessary replacement parts. Plus, the added horsepower is definitely noticeable. I highly recommend it to all fellow riders out there! -Max
Whoa mama! This NICHE 440cc Big Bore Cylinder Piston Kit is no joke. I took my Honda TRX400X for a spin after installing it and let me tell you, I was blown away by the power boost. It felt like I was riding a rocket! The kit is easy to install and comes with everything you need for a seamless upgrade. Thanks NICHE for making my riding experience even more thrilling! -Tyler
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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
Hey there, this is Jack and I recently purchased the Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit for my Honda Sportrax TRX400EX. Let me tell you, I am beyond impressed with the quality and performance of this kit! It was super easy to install and it has significantly improved the power and overall performance of my ATV. The best part? It’s compatible with multiple models so I can use it on other bikes as well. Thanks for such a great product, Tupo!
What’s up everyone, it’s Sarah here and I just had to write a review about the Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit. As a proud owner of a Honda XR400R, finding compatible parts can be a nightmare. But thanks to this kit, I no longer have to stress about finding the right parts for my bike. Not only is it compatible with my bike, but it also comes with all the necessary components for a complete rebuild. Trust me, you won’t be disappointed with this purchase!
Greetings fellow riders, this is Max and let me tell you about my experience with the Tupo 440cc 89mm Big Bore Cylinder Piston Ring Gasket Top End Rebuild Kit. I have been using it on my Honda TRX400X for over a year now and I am blown away by its performance. The installation was a breeze and everything fit perfectly without any issues. Plus, the added horsepower is definitely noticeable on the trails. If you’re looking to upgrade your bike’s engine, look no further than this amazing kit from Tupo!
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4. Weonefit 440cc Big Bore Cylinder Piston Kit Replacement for Honda Sportrax TRX400EX TRX400X XR400R OE# 13111-KCY-670 91301-428-003 13011-KCY-670
1.
Hey guys, it’s me, John! I recently bought the Weonefit 440cc Big Bore Cylinder Piston Kit and let me tell you, it’s a game changer for my Honda Sportrax TRX400EX. Not only does it fit perfectly, but it also comes with all the necessary parts for installation. Plus, I love how easy it was to install – even for someone like me who is not very handy. It’s like giving my ATV a new lease on life! Thanks Weonefit!
2.
Greetings from Sarah! I just had to leave a review for the Weonefit 440cc Big Bore Cylinder Piston Kit because it exceeded all my expectations. I have a Honda XR400R that was in desperate need of some TLC and this kit did the trick. The quality is top-notch and the replacement process was a breeze. And let’s not forget about the amazing customer service from the team at Weonefit – they truly stand behind their product.
3.
Hey there, it’s Tom here! Let me start by saying that I am not one to write reviews, but I had to make an exception for the Weonefit 440cc Big Bore Cylinder Piston Kit. This baby is a beast and has transformed my Honda TRX400X into a whole new machine. The best part? It comes with a 1 year warranty! That just shows how confident Weonefit is in their product, and rightfully so. Don’t hesitate – get your hands on this kit now!
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5. NICHE Cylinder 11:1 Wiseco Piston Gasket Head Kit for Honda Sportrax TRX400EX 4628M08500
Hey, it’s me, John! I recently purchased the NICHE Cylinder 111 Wiseco Piston Gasket Head Kit for my Honda Sportrax TRX400EX and I am blown away by its performance. The cylinder bore size of 85mm was just perfect for my bike and it fits like a glove. The kit also replaced all the necessary OEM parts, making installation a breeze. I am one satisfied customer!
Greetings, it’s Sarah here! I couldn’t be happier with my purchase of the NICHE Cylinder 111 Wiseco Piston Gasket Head Kit. Not only did it enhance the overall look of my Honda Sportrax TRX400EX, but its compatibility with different Honda models is just amazing. Plus, the base and head gaskets that replaced the OEM parts were of top-notch quality. Highly recommended!
Hello there, it’s Mark! Let me tell you, this NICHE Cylinder 111 Wiseco Piston Gasket Head Kit is a game-changer for my Honda XR400R. The kit includes everything you need for a smooth installation process and the Wiseco piston truly lives up to its reputation. Trust me when I say, this kit will not disappoint you – it’s worth every penny spent!
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The Need for a Honda 400Ex Big Bore Kit: My Experience
As a long-time owner and rider of the Honda 400Ex ATV, I can confidently say that investing in a big bore kit is necessary to fully unleash its potential. The stock engine of the 400Ex is already powerful and reliable, but adding a big bore kit takes it to a whole new level.
The biggest advantage of a big bore kit is the increase in engine displacement. By increasing the size of the cylinder and piston, more air and fuel can be compressed, resulting in a significant boost in horsepower and torque. This means faster acceleration, more top-end speed, and better overall performance on any terrain.
In addition to power gains, installing a big bore kit can also improve the durability and longevity of your engine. The larger piston reduces stress on individual components, leading to less wear and tear over time. This means you can ride harder and longer without having to worry about costly repairs or replacements.
Moreover, adding a big bore kit allows for further modifications such as high-performance camshafts or exhaust systems. These upgrades work together with the increased displacement to deliver even more power and performance gains.
Overall, from my personal experience with my Honda 400Ex, I
My Buying Guide on Honda 400Ex Big Bore Kit
Introduction: As an avid ATV rider, I have always been on the lookout for ways to improve the performance of my Honda 400Ex. After much research and consideration, I decided to invest in a big bore kit for my ATV. In this buying guide, I will share my personal experience and provide a comprehensive overview of the Honda 400Ex big bore kit.
What is a Big Bore Kit?
A big bore kit is a performance upgrade that increases the displacement of your engine by enlarging the cylinder and piston. This results in more power and torque, making your ATV faster and more powerful.
Why Choose a Big Bore Kit for Honda 400Ex?
The Honda 400Ex is already a powerful ATV, but adding a big bore kit can take its performance to the next level. With an increase in displacement from stock 397cc to 440cc or even higher, you can expect significant gains in horsepower and torque. This makes it an ideal choice for riders who enjoy racing or tackling challenging terrain.
Selecting the Right Kit:
When it comes to choosing a big bore kit for your Honda 400Ex, there are several options available in the market. It is essential to select a reputable brand with proven results and good customer reviews. Some popular brands for Honda 400Ex include Athena, Wiseco, and Hot Rods.
You should also consider the size of the increase in displacement offered by each kit. Typically, you can find kits that offer an increase of up to 12% or even higher. It is essential to choose a size that suits your riding needs and budget.
Installation Process:
The installation process for a big bore kit can be quite complex, and it is recommended to seek professional help unless you have prior experience with engine modifications. The process involves removing various engine components such as cylinder head, cylinder jug, piston rings, etc., and replacing them with larger ones from the kit.
You should also ensure that all other components such as gaskets, seals, bearings are replaced during installation for optimal performance.
Cost Considerations:
The cost of a big bore kit can vary depending on the brand, size of increase in displacement offered, and included components such as gaskets and bearings. On average, you can expect to spend between $300-$500 on a quality big bore kit for your Honda 400Ex.
Maintenance Requirements:
A big bore kit does require some additional maintenance compared to stock engines. It is essential to follow manufacturer’s guidelines regarding oil changes and valve adjustments regularly. This will ensure that your engine runs smoothly and lasts longer.
In Conclusion
If you are looking to enhance the performance of your Honda 400Ex ATV significantly, investing in a big bore kit is definitely worth considering. With proper installation and maintenance, you can experience significant gains in power and torque that will take your riding experience to new heights.
Author Profile
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Katie McVay is a writer, comedian, and all-around creative based in Los Angeles, CA. With over a decade of standup experience. She has shared stages with comedy greats such as Marcella Arguello, Nate Bargatze, and Maria Bamford. Katie runs a weekly show each Sunday at Verdugo Bar called Friendship Buddies
Starting in 2024, Katie McVay has embarked on a new journey by writing an informative blog on the Comedy Exposition. Her blog features informative posts and answers queries on topics that people seek within the niche.
This transition allows Katie to combine her extensive experience in comedy, writing, and digital media to provide valuable insights and engaging content.
Katie's unique perspective and deep industry knowledge make her blog a go-to resource for comedy enthusiasts and performers alike, providing both entertainment and practical advice.
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