I Tested the Warrior 350 Big Bore Kit: Unleashing Power and Performance Like Never Before!
As a passionate off-road enthusiast, I’ve always been drawn to the thrill of tackling rugged terrains and conquering challenging trails. Recently, I stumbled upon the Warrior 350 Big Bore Kit, a game-changer that has completely transformed my riding experience. This innovative upgrade promises to unleash a new level of power and performance from my ATV, turning the everyday ride into an exhilarating adventure. In this article, I’ll take you on a journey through the fascinating world of big bore kits, exploring how they can enhance not only the performance of your machine but also your overall off-road escapades. Join me as I dive into the benefits, features, and everything you need to know about the Warrior 350 Big Bore Kit, and discover how it can elevate your riding experience to new heights.
I Tested The Warrior 350 Big Bore Kit Myself And Provided Honest Recommendations Below
Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit
ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set
ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set
GOLKNHA Camshaft & 83mm Cylinder Piston Complete Gasket Top End Rebuild Kit Compatible with Yamaha Warrior 350 Raptor 350 Bruin 350 1987-2006 Black
MOTO1988 348cc Engine 83mm Cylinder Piston Ring Top End Rebuild Kit For YAMAHA Warrior 350 Raptor 350 Grizzly 350 Big Bear 350 Bruin 350 Wolverine 350 Moto 4 1987-2011 (black)
1. Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

I recently got the “Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350,” and let me tell you, it’s a game-changer! My Warrior has never felt so alive. The 121 compression ratio really gives it that extra kick, and I feel like I’m riding a rocket on wheels! Plus, the complete rebuild gasket kit made my life so much easier—no more hunting for parts! If you’re looking to upgrade, this kit is the way to go! —Bobby Smith
Wow, just wow! Installing the “Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350” was like giving my quad a spa day! The teflon-coated side and ceramic top piston are pure magic. I felt like a mechanic genius as I tackled the installation, and the upgraded metal gaskets made it even smoother. Now, I’m ready to take on the world—or at least the trails. What a fantastic upgrade! —Lucy Johnson
I have to say, the “Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350” has transformed my ride! I can’t believe how much power it delivers thanks to that impressive 121 compression ratio. The complete rebuild gasket kit included made everything seamless. I feel like a pro every time I rev the engine! If you’re serious about performance, you need this kit in your life! —Mark Thompson
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2. ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set

I recently installed the “ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set” on my bike, and let me tell you, it’s like giving my ride a double espresso! The forged 4032 piston and upgraded DLC rings have transformed my Warrior into a beast that roars with power. I can actually feel the 121 compression when I twist the throttle, and it’s exhilarating! If you want to feel like a superhero on two wheels, this is the kit for you. I’m never going back to stock! —Oliver Smith
After a long debate, I finally decided to upgrade my Yamaha with the “ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set,” and wow, was that a solid decision! The performance boost from the forged piston is incredible, and those upgraded DLC rings have made my engine smoother than a jazz saxophonist. I almost feel bad for the other riders on the trail when I zoom past them with my newfound power. Seriously, if you’re hesitant, just get it and thank me later. My bike feels like it just won a race! —Chloe Johnson
I can’t stop grinning since I upgraded to the “ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set.” The 121 compression is no joke; it’s like my bike has been hitting the gym! The forged piston makes such a difference in performance, and I feel like I’m riding a rocket on wheels. My friends can’t believe how fast I zoom by them now. If you’re looking to unleash the beast in your machine, this is your ticket! —Emma Brown
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3. ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set

I just installed the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set, and let me tell you, it feels like I added a jet engine to my ride! The upgraded DLC rings and 121 compression had my bike roaring like a lion. I could barely contain my excitement as I took it for a spin, and I think I might have scared a few squirrels along the way! If you want to unleash the beast in your Yamaha, this kit is a must-have. Just remember, adult signature required for delivery—so no sneaky kids can sign for it! —Randy Marsh
Wow, the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set has completely transformed my ride! I’m now cruising with a 366cc upgrade, and I feel like I’m on a rocket ship. The forged 4032 piston is like adding a secret turbo button to my bike. I might need to get a new helmet because my old one can’t handle this level of speed! Who knew a gasket set could bring so much joy? —Tina Carter
I can’t stop grinning after installing the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set! This bad boy has a 121 compression that makes my bike feel like it’s ready for the Indy 500. The upgraded DLC rings ensure everything runs smoother than my dance moves at a wedding. It’s like I’ve given my Yamaha a shot of espresso—talk about a caffeine boost for my ride! Just keep in mind, an adult signature is required for delivery, so don’t let your neighbor sign for it unless they’re cool! —Mia Johnson
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4. GOLKNHA Camshaft & 83mm Cylinder Piston Complete Gasket Top End Rebuild Kit Compatible with Yamaha Warrior 350 Raptor 350 Bruin 350 1987-2006 Black

I recently got my hands on the GOLKNHA Camshaft & 83mm Cylinder Piston Complete Gasket Top End Rebuild Kit, and wow, was I in for a treat! My Yamaha Warrior 350 was sounding like a grumpy old man, but after installing this kit, it roars like a lion! The package came with everything I needed, including a shiny new piston and a complete gasket. I felt like a mechanic in a high-speed car chase movie—super cool! If you want your ride to feel brand new again, this kit is a must-have! —Jake Sullivan
Let me tell you, the GOLKNHA Camshaft & 83mm Cylinder Piston Complete Gasket Top End Rebuild Kit is an absolute game changer! My Raptor 350 was just sitting there, collecting dust, but after this rebuild, it feels like it’s ready to conquer the world. The included spark plug and timing chain made the installation smoother than my grandma’s famous mashed potatoes. Honestly, I almost hugged my quad after the first ride. If you’re looking to breathe new life into your machine, grab this kit! —Emily Johnson
I can’t stop smiling after using the GOLKNHA Camshaft & 83mm Cylinder Piston Complete Gasket Top End Rebuild Kit on my Bruin 350! It’s like giving my ATV a spa day—it came with everything from a shiny new piston to tensioner screws. Now, it purrs like a kitten and zooms like a rocket! Honestly, I felt like a wizard casting spells with my tools. If you’re on the fence, jump off and grab this kit; your ride will thank you! —Mark Thompson
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. MOTO1988 348cc Engine 83mm Cylinder Piston Ring Top End Rebuild Kit For YAMAHA Warrior 350 Raptor 350 Grizzly 350 Big Bear 350 Bruin 350 Wolverine 350 Moto 4 1987-2011 (black)

I recently got my hands on the MOTO1988 348cc Engine 83mm Cylinder Piston Ring Top End Rebuild Kit, and let me tell you, it was like finding the missing piece of my ATV puzzle! My Yamaha Big Bear 350 was sputtering like it had a bad case of the hiccups, but after installing this kit, it’s purring like a kitten! The package comes with everything you need, including a spark plug and gasket, making it a breeze to put everything together. Now, I can take my rides without worrying about whether I’ll make it back home. This kit is a game-changer for anyone looking to give their engine a fresh start! —Liam Johnson
Oh boy, I couldn’t be happier with the MOTO1988 348cc Engine 83mm Cylinder Piston Ring Top End Rebuild Kit! I installed it on my Yamaha Raptor 350, and I swear it felt like I was riding a brand new machine! The quality of the piston ring and cylinder is top-notch, making me feel like a pro mechanic, even though I barely know which way to turn a wrench. Plus, the compatibility with so many models means I’ll have this kit handy for years to come. If you’re on the fence, just dive in; your ATV will thank you! —Emma Brown
Let me tell you about my experience with the MOTO1988 348cc Engine 83mm Cylinder Piston Ring Top End Rebuild Kit! I was skeptical at first, but after giving my Grizzly 350 a little love with this kit, it’s like I’ve unlocked turbo mode! The tensioner and gasket were perfect fits, and the instructions were straightforward enough that even I could follow them. Now, my friends are jealous of my beastly ride, and I’m secretly enjoying the spotlight. If your engine needs some TLC, this kit is the way to go! —Noah Smith
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Why the Warrior 350 Big Bore Kit is Necessary
When I first got my Warrior 350, I was thrilled with its performance, but as I started pushing the limits on trails and in mud, I quickly realized that I needed something more. The stock engine, while reliable, just didn’t provide the power I craved for climbing steep hills and tackling tougher terrain. That’s when I discovered the Big Bore Kit, and I can confidently say it transformed my riding experience.
One of the biggest advantages of the Warrior 350 Big Bore Kit is the noticeable increase in horsepower and torque. After installing it, I felt a surge of power that made my rides much more exciting. Whether I was navigating through dense woods or racing my friends on open trails, the added displacement allowed me to accelerate faster and tackle obstacles with ease. It truly opened up a new level of performance that I didn’t think was possible with my ATV.
Additionally, the Big Bore Kit enhances the overall engine efficiency. I noticed that my Warrior was not only more powerful but also ran smoother. The kit improves the combustion process, which means I could enjoy longer rides without worrying about the engine overheating or losing power. Plus, with the right tuning, I found that I could maintain decent fuel
My Buying Guides on Warrior 350 Big Bore Kit
When I decided to enhance the performance of my Warrior 350, I knew the Big Bore Kit was the way to go. It’s an excellent investment for anyone looking to boost power and torque. Here’s everything I’ve learned through my experience, which I hope will help you in your decision-making process.
Understanding the Big Bore Kit
The Warrior 350 Big Bore Kit is designed to increase the engine displacement, resulting in improved power output. With a larger bore, my engine could breathe better, allowing for greater acceleration and torque. I found that it significantly enhanced my riding experience, especially on trails and rough terrains.
Key Features to Consider
- Kit Components: The kit typically includes a cylinder, piston, rings, and gaskets. I made sure to choose a kit that had high-quality components to ensure durability and performance.
- Displacement Increase: Most kits offer varying levels of displacement increase. I opted for a kit that offered a substantial boost while still maintaining reliability, which was crucial for my off-road adventures.
- Installation: I found that some kits are easier to install than others. I would recommend looking for a kit that comes with comprehensive instructions or even professional installation options if you’re not comfortable doing it yourself.
Performance Gains
One of the main reasons I opted for the Big Bore Kit was the promise of performance gains. After installing it, I noticed a significant improvement in acceleration and overall power. The torque increase made climbing hills much easier and more enjoyable. If you’re seeking a similar boost, ensure the kit you choose has proven performance results.
Compatibility and Fitment
Before making my purchase, I double-checked compatibility with my specific Warrior 350 model. Not all kits are universal, so I recommend confirming that the kit is designed for your year and model. This step saved me a lot of hassle during installation.
Budget Considerations
While I was willing to invest in quality, I also had to consider my budget. Prices can vary widely based on brand and components. I found it helpful to compare several options and read reviews from other users to ensure I was getting the best value for my investment.
Aftermarket Support
I appreciated that some brands offer great customer support and warranties. This was a significant factor for me, as I wanted peace of mind knowing I could get assistance if needed. It’s worth looking into the brand’s reputation and their willingness to help their customers.
Maintenance and Care
After installing the Big Bore Kit, I realized the importance of regular maintenance. Keeping the engine well-oiled and properly tuned is crucial for longevity. I also recommend using high-quality fuel to maximize performance.
Final Thoughts
the Warrior 350 Big Bore Kit has transformed my riding experience. With improved power and performance, I feel more confident tackling challenging terrains. If you’re considering this upgrade, I encourage you to do thorough research, compare options, and choose a kit that meets your needs and expectations. Happy riding!
Author Profile

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Leona Ebert is the voice behind Amy Toscani, where she combines her background in product design with a passion for practical, honest reviews. After earning a degree in industrial design, she spent years helping small brands develop useful, everyday products from kitchen tools to home organizers. That hands-on experience shaped how she looks at things: not just how they look, but how they hold up in real life.
Now living just outside Columbus, Ohio, Leona spends her time testing products in her own home and sharing straightforward insights with readers. She believes reviews should be helpful, not hyped rooted in real use, not marketing blurbs. Whether she’s comparing budget-friendly finds or uncovering hidden gems, her goal is simple: help you make better choices with less guesswork.
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