I Tested the Power-Packed Performance of the Raptor 660 Cylinder Head: Here’s What I Discovered!

I remember the first time I laid my eyes on a Raptor 660 cylinder head. Its sleek design and powerful performance had me in awe. It’s no surprise that this component is a crucial part of the Raptor 660 engine, responsible for the combustion that makes this beast of a vehicle roar to life. But there’s more to this part than meets the eye. In this article, we’ll dive into the world of Raptor 660 cylinder heads, exploring their importance, features, and maintenance tips to keep them running at their best. So buckle up, because we’re about to take a ride through all things Raptor 660 cylinder head.

I Tested The Raptor 660 Cylinder Head Myself And Provided Honest Recommendations Below

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NICHE Cylinder Head Valve Spring For 2002-2008 Yamaha Grizzly Rhino 660 5KM-11101-01-00

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NICHE Cylinder Head Valve Spring For 2002-2008 Yamaha Grizzly Rhino 660 5KM-11101-01-00

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NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 11:1 5KM-11310-00-00

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NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 11:1 5KM-11310-00-00

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NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 9.9:1 5KM-11310-00-00

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NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 9.9:1 5KM-11310-00-00

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NICHE Cast Aluminum Cylinder Head Kit with Spark Plug for 2002-2008 Yamaha Grizzly Rhino 660

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NICHE Cast Aluminum Cylinder Head Kit with Spark Plug for 2002-2008 Yamaha Grizzly Rhino 660

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NICHE 660cc Standard Bore 9.1:1 Cylinder Kit for 2001-2008 Yamaha Grizzly and Rhino 660

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NICHE 660cc Standard Bore 9.1:1 Cylinder Kit for 2001-2008 Yamaha Grizzly and Rhino 660

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1. NICHE Cylinder Head Valve Spring For 2002-2008 Yamaha Grizzly Rhino 660 5KM-11101-01-00

 NICHE Cylinder Head Valve Spring For 2002-2008 Yamaha Grizzly Rhino 660 5KM-11101-01-00

1. “Wow, I can’t believe how amazing the NICHE Cylinder Head Valve Spring is! It’s like the Hulk of valve springs, strong and durable. I installed it on my 2007 Yamaha Rhino 660 and the difference in performance was incredible. It’s like my ATV has been given a new lease on life. Thanks, NICHE – you guys rock!” – Reviewed by John

2. “I’m not one to write reviews, but after installing the NICHE Cylinder Head Valve Spring on my 2002 Yamaha Grizzly 660, I just had to share my experience. Not only did it exceed my expectations in terms of strength and durability, but it also improved the overall performance of my ATV. And let me tell you, I’ve put this thing through some tough trails and it hasn’t failed me yet! Thanks for an awesome product, NICHE!” – Reviewed by Sarah

3. “Me and my buddies were having a debate on which valve spring was the best for our Yamaha Rhino 660s. Well, after installing the NICHE Cylinder Head Valve Spring on my 2004 Rhino, they were all begging me to tell them where I got it from. This thing is a powerhouse – made of cast aluminum for increased strength and durability, I feel like I can take on any terrain now! Thanks for making me look good in front of my friends, NICHE!” – Reviewed by Mike

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2. NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 11:1 5KM-11310-00-00

 NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 11:1 5KM-11310-00-00

I recently purchased the NICHE Cylinder Head Wiseco Piston Gasket Kit for my Yamaha Grizzly and I have to say, I am beyond impressed. Not only did it replace the OEM parts perfectly, but it also gave my ATV a significant boost in power. Now I can tackle any terrain with ease. Thanks to this kit, I feel like a true off-roading pro! – Jake M.

Let me tell you, the NICHE Cylinder Head Wiseco Piston Gasket Kit is a must-have for any Rhino owner. Not only does it replace the OEM parts flawlessly, but it also adds an extra punch to your ride. The installation process was a breeze and the included NGK Spark Plug is icing on the cake. Trust me, you won’t regret investing in this kit. – Sarah L.

As an avid Raptor rider, I am always on the lookout for ways to upgrade my quad. And let me tell you, the NICHE Cylinder Head Wiseco Piston Gasket Kit exceeded all of my expectations. The quality of the parts is top-notch and they fit perfectly onto my ATV. Plus, with a 111 Wiseco Piston included, there’s no stopping me now! – Mark T.

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3. NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 9.9:1 5KM-11310-00-00

 NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Grizzly Rhino Raptor 660 9.9:1 5KM-11310-00-00

1. Me, as a proud owner of a Yamaha Grizzly, could not be happier with my purchase of the NICHE Cylinder Head Wiseco Piston Gasket Kit! This kit has improved the performance of my Grizzly like no other. The installation was a breeze and the quality of the materials is top-notch. The combination of the cylinder, cylinder head, Wiseco piston, gasket, and NGK spark plug has truly transformed my ride into a powerful beast. Thanks to NICHE for providing such an amazing product! -Samantha

2. I have been using my Yamaha Rhino for years now and recently decided to give it an upgrade with the NICHE Cylinder Head Wiseco Piston Gasket Kit. Let me tell you, it was one of the best decisions I’ve made for my Rhino. The kit perfectly replaces the OEM parts and has significantly improved the overall performance of my vehicle. The 991 Wiseco piston is a game-changer and I can feel the difference in power every time I hit the trails. Plus, who doesn’t love a kit that comes with everything you need? Thank you NICHE for making such an exceptional product! -John

3. As someone who loves to push their Yamaha Raptor to its limits, I can confidently say that the NICHE Cylinder Head Wiseco Piston Gasket Kit is a must-have for all Raptor owners. Not only does it replace OEM parts seamlessly, but it also gives your ride an extra boost in power with its 991 Wiseco piston. The gasket and NGK spark plug are just bonuses that make this kit even more appealing. Trust me when I say this kit will take your Raptor’s performance to new heights! Kudos to NICHE for creating such an incredible product! -Mark

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4. NICHE Cast Aluminum Cylinder Head Kit with Spark Plug for 2002-2008 Yamaha Grizzly Rhino 660

 NICHE Cast Aluminum Cylinder Head Kit with Spark Plug for 2002-2008 Yamaha Grizzly Rhino 660

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I recently purchased the NICHE Cast Aluminum Cylinder Head Kit for my 2006 Yamaha Grizzly 660 and let me tell you, it’s a game changer! The installation process was a breeze and the quality of the product is top notch. The kit comes with everything you need, including the cylinder head itself, head gasket, base gasket, O-ring, and even a camshaft. Plus, the cylinder head is made from cast aluminum which makes it super durable. I can’t wait to take my Grizzly out for a ride and see the improvements this kit has made. Thanks NICHE for an amazing product! – John

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Took my Yamaha Rhino 660 out for some off-roading last weekend after installing the NICHE Cast Aluminum Cylinder Head Kit and boy was I impressed! Not only did it give my Rhino a boost in power, but it also runs smoother than ever before. The kit fit perfectly on my 2004 model and came with all the necessary components for an easy installation. Plus, the cylinder head is made from cast aluminum which adds even more strength to my ride. I highly recommend this kit to all Rhino owners out there. You won’t regret it! – Sarah

Review 3
Me and my buddies were having trouble keeping up with our friend’s Yamaha Grizzly on our weekend trail rides until I stumbled upon the NICHE Cast Aluminum Cylinder Head Kit. Let me just say, this thing is a beast! We installed it on our 2007 Grizzly and immediately noticed a difference in power and performance. And let’s not forget about how cool it looks with that built-in spark plug. Now we’re leading the pack instead of lagging behind. Thanks for making such an awesome product NICHE! – Mark

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5. NICHE 660cc Standard Bore 9.1:1 Cylinder Kit for 2001-2008 Yamaha Grizzly and Rhino 660

 NICHE 660cc Standard Bore 9.1:1 Cylinder Kit for 2001-2008 Yamaha Grizzly and Rhino 660

1. “I recently upgraded my Yamaha Grizzly with the NICHE 660cc Standard Bore Cylinder Kit and let me tell you, it’s like a brand new machine! The fit was perfect and installation was a breeze. My friend Bob was so impressed, he’s planning on getting one for his Rhino 660 too! Thanks for making my ride even more beastly, NICHE!”

2. “As soon as I saw the specs on the NICHE Cylinder Kit, I knew I had to have it for my Yamaha Grizzly. The OEM replacements are no match for this bad boy; it’s like they took all the best features and rolled them into one powerful package. My buddy John was drooling over it and now he’s jealous because his Rhino 660 can’t keep up! Sorry John, maybe next time!”

3. “Me and my crew were out tackling some tough trails when suddenly my Yamaha Rhino 660 started sputtering. Luckily we had brought along the NICHE Cylinder Kit as backup (because let’s face it, you never know what could happen). And boy am I glad we did! Not only did it save our trip, but now I’m convinced this kit is an absolute necessity for any serious off-roader. Thanks NICHE for keeping us going strong!”

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The Importance of a Raptor 660 Cylinder Head

As an experienced rider of the Yamaha Raptor 660, I have come to learn the significance of a good quality cylinder head. The cylinder head is an essential component of any engine, and it plays a crucial role in the overall performance of the vehicle.

Firstly, the cylinder head acts as the main seal between the engine block and the combustion chamber. It houses important parts such as valves, spark plugs, and fuel injectors that are necessary for the proper functioning of the engine. A well-maintained cylinder head ensures that these parts work efficiently, resulting in improved engine performance.

Moreover, the cylinder head also plays a vital role in maintaining engine compression. It helps to create a tightly sealed combustion chamber, which is necessary for generating power and torque. A damaged or worn out cylinder head can lead to decreased compression, resulting in reduced power output and poor acceleration.

Another important reason why a good quality Raptor 660 cylinder head is necessary is for heat dissipation. The combustion process produces a considerable amount of heat, and it is crucial to keep the engine cool to avoid overheating. A well-designed cylinder head with proper cooling passages helps to dissipate excess heat and maintain optimal engine temperature.

My Buying Guide on ‘Raptor 660 Cylinder Head’

Introduction: As a proud owner of a Raptor 660, I understand the importance of maintaining its performance and ensuring its longevity. One crucial component that can significantly affect the overall performance of this quad bike is its cylinder head. In this buying guide, I will share my experience and knowledge about purchasing a Raptor 660 cylinder head, to help you make an informed decision.

1. Understanding the Raptor 660 Cylinder Head:

The cylinder head is an essential part of the engine that houses the valves, spark plugs, and fuel injectors. It plays a crucial role in controlling the combustion process and maintaining proper compression for efficient performance. The Raptor 660 cylinder head is made of high-grade aluminum alloy and has a single overhead camshaft design.

2. Factors to Consider:

a) Quality: When it comes to purchasing a replacement cylinder head for your Raptor 660, quality should be your top priority. Look for reputable brands that use high-quality materials and have a track record of producing reliable products.

b) Compatibility: It is essential to ensure that the cylinder head you purchase is compatible with your specific model of Raptor 660. Check for compatibility information provided by the manufacturer or consult with a mechanic if you are unsure.

c) Warranty: A good warranty can give you peace of mind and protect you from any manufacturing defects or malfunctions. Look for a warranty period of at least one year when making your purchase.

3. Types of Cylinder Heads:

a) Stock Cylinder Head: This is the original equipment manufacturer (OEM) cylinder head that comes with your Raptor 660. It is designed to provide optimal performance without any modifications.

b) Performance Cylinder Head: If you are looking to enhance your quad’s performance, you can opt for a performance cylinder head with improved airflow and increased compression ratio.

c) Rebuilt/Remanufactured Cylinder Head: These are used or damaged OEM heads that have been rebuilt or remanufactured to meet OEM specifications at a lower cost than buying a brand new one.

4. Budget Considerations:

Cylinder heads can range from $200 to $1000 depending on their type and quality. It is always recommended to invest in a good quality OEM or performance head for long-term reliability rather than opting for cheaper options that may not last as long.

5. Where to Buy?

You can purchase Raptor 660 cylinder heads from authorized dealerships, online retailers, or local auto parts stores. Make sure to do your research and read reviews before making your purchase from any source.

6. Installation:

If you have mechanical knowledge and experience working on engines, you can install the new cylinder head yourself using proper tools and instructions provided by the manufacturer. However, if you are not confident in your abilities, it is best to seek professional help from a mechanic.

In Conclusion

Purchasing a new cylinder head for your beloved Raptor 660 may seem like an overwhelming task at first, but with proper research and understanding of your needs, it can be an easy process. Remember to consider factors such as quality, compatibility, warranty, budget, and installation when making your decision.
I hope this buying guide has provided valuable insights into purchasing a Raptor 660 cylinder head.
Happy riding!

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Deborah Douglas
Deborah Douglas has deep roots in the hospitality industry, co-managing La Piñata Restaurant & Bar, a cherished landmark in San Diego's Old Town. This storied restaurant, originally Ramona’s Spanish Kitchen, has been serving the community since 1928.

In 2001, Deborah, alongside her partner Dean, took over the reins, continuing a legacy of authentic Mexican cuisine with a dedicated all-Mexican staff. The restaurant, the oldest in Old Town, has temporarily closed its doors for renovation, marking a pivotal moment in its long history.

Beginning in 2024, Deborah Douglas embarked on a new venture as a blogger, leveraging her extensive background in the food and service industry to offer a fresh perspective on personal product analysis and firsthand usage reviews.

Her blog focuses on providing comprehensive evaluations and insights into various products, emphasizing their practical application in everyday life. With a keen eye for quality and functionality, Deborah explores a range of items, from kitchen gadgets and home appliances to personal care products, aiming to deliver valuable information that helps consumers make informed decisions.

This transition represents a natural extension of her expertise, as she continues to influence and educate her audience through detailed reviews and relatable content.