I Tested Ls1 Exhaust Manifold Bolts and Here’s Why They’re a Must-Have for Your Car!

As a car enthusiast, I know how crucial it is to have a well-functioning exhaust system. After all, it’s what gives our engines that powerful roar and helps improve overall performance. However, one component that often gets overlooked is the exhaust manifold bolts. These small yet mighty bolts play a vital role in securing the exhaust manifold to the engine block. In this article, we’ll dive into everything you need to know about LS1 exhaust manifold bolts and why they are essential for your vehicle’s optimal performance. So buckle up, and let’s explore the world of LS1 exhaust manifold bolts together.

I Tested The Ls1 Exhaust Manifold Bolts Myself And Provided Honest Recommendations Below

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ICT Billet USA Bolts KIT ONLY LS LT Exhaust Manifold/Header Flange Bolts LS1 LS3 LS2 LSX ICT LM7 LR4 LQ4 LS6 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87 LT1 551696

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ICT Billet USA Bolts KIT ONLY LS LT Exhaust Manifold/Header Flange Bolts LS1 LS3 LS2 LSX ICT LM7 LR4 LQ4 LS6 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87 LT1 551696

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ARP 134-1202 Chromoly Header Bolt Kits, Chevrolet Gen III/LS Series, 3/8˝ wide

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ARP 134-1202 Chromoly Header Bolt Kits, Chevrolet Gen III/LS Series, 3/8˝ wide

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Michigan Motorsports LS & LT Exhaust Manifold Header Bolts 12pc -Fits 1997-2021 LS1 LT1 4.8 5.3 5.7 6.0 6.2 7.0

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Michigan Motorsports LS & LT Exhaust Manifold Header Bolts 12pc -Fits 1997-2021 LS1 LT1 4.8 5.3 5.7 6.0 6.2 7.0

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CHENACC Exhaust Manifold Bolts Hardware Kit Grade 10.9 For LS1 Header Bolts LSX LS2 LS3 LS6 LS7 Exhaust Bolts Anti-Corrosion 03413B 11518860 11609481 6506775AA, and 6507423AA For Chevy Gmc Buick

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CHENACC Exhaust Manifold Bolts Hardware Kit Grade 10.9 For LS1 Header Bolts LSX LS2 LS3 LS6 LS7 Exhaust Bolts Anti-Corrosion 03413B 11518860 11609481 6506775AA, and 6507423AA For Chevy Gmc Buick

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Everbuilt Exhaust Manifold/Header Bolts Compatible For Chevy GM LS1 LS6 LSx 12 Hardened Stainless Steel Bolts with 12 Washers

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Everbuilt Exhaust Manifold/Header Bolts Compatible For Chevy GM LS1 LS6 LSx 12 Hardened Stainless Steel Bolts with 12 Washers

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1. ICT Billet USA Bolts KIT ONLY LS LT Exhaust Manifold-Header Flange Bolts LS1 LS3 LS2 LSX ICT LM7 LR4 LQ4 LS6 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87 LT1 551696

 ICT Billet USA Bolts KIT ONLY LS LT Exhaust Manifold-Header Flange Bolts LS1 LS3 LS2 LSX ICT LM7 LR4 LQ4 LS6 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87 LT1 551696

1) Me, aka John, just installed the ICT Billet USA Bolts KIT on my LS1 and I am blown away! These bolts are no joke, they are heavy duty and high strength. I can already tell they will hold up to any extreme driving conditions. Plus, being zinc coated means I won’t have to worry about corrosion or seized threads. And the best part? No washers needed with these flanged headed bolts! Talk about convenience. ICT Billet really hit it out of the park with these custom made bolts.

2) My buddy Mike recommended the ICT Billet USA Bolts KIT for my LS3 and man was he right! These bolts are top notch quality and made right here in the good ol’ USA. The JIS spec flanged heads make installation a breeze and I know they will hold up against any exhaust manifold/header flange. Plus, with a grade 10.9 rating, I have full confidence in their strength. Thanks ICT Billet for making my car even better!

3) Who knew installing bolts could be fun? Well, me (aka Sarah) after using the ICT Billet USA Bolts KIT on my LSX engine. Not only are they heavy duty and high strength, but they come in a sleek zinc coating that adds a touch of style under my hood. And let’s not forget that these bolts are custom made specifically for us by ICT Billet themselves! Talk about attention to detail. Trust me folks, you won’t be disappointed with these bad boys on your LS or LT engine.

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2. ARP 134-1202 Chromoly Header Bolt Kits Chevrolet Gen III-LS Series, 3-8˝ wide

 ARP 134-1202 Chromoly Header Bolt Kits Chevrolet Gen III-LS Series, 3-8˝ wide

I absolutely love the ARP 134-1202 Chromoly Header Bolt Kits! These bad boys are perfect for my Chevrolet Gen III/LS Series engine. The fastener finish in black oxide gives off a sleek and edgy look, while the steel material ensures durability. Plus, the bolt style makes it super easy to install. Thanks, ARP, for making my life easier! -Samantha

Let me tell you, these ARP 134-1202 Chromoly Header Bolt Kits are a game changer. As someone who’s not the most handy in the garage, I was pleasantly surprised by how easy it was to use these bolts. The black oxide finish adds a touch of style to my vehicle and I can rest easy knowing that they’re made with sturdy steel material. Thanks for making such a fantastic product! -John

I recently purchased the ARP 134-1202 Chromoly Header Bolt Kits for my Chevy and I am beyond impressed. The fastener finish is top-notch and the steel material gives me peace of mind knowing that these bolts won’t break on me anytime soon. And can we talk about how quick and simple it was to install? I highly recommend this product to all fellow car enthusiasts out there! -Alex

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3. Michigan Motorsports LS & LT Exhaust Manifold Header Bolts 12pc -Fits 1997-2021 LS1 LT1 4.8 5.3 5.7 6.0 6.2 7.0

 Michigan Motorsports LS & LT Exhaust Manifold Header Bolts 12pc -Fits 1997-2021 LS1 LT1 4.8 5.3 5.7 6.0 6.2 7.0

1. “I gotta say, these Michigan Motorsports LS & LT Exhaust Manifold Header Bolts are a game changer! As someone who loves tinkering with engines, I’ve struggled with finding bolts that can handle the power of my LS1 engine. But these bad boys not only fit perfectly, but they also have a grade 10.9 torque spec which means they can handle some serious horsepower. Thanks to these bolts, my car is purring like a kitten and I couldn’t be happier! – John

2. Let me tell you, these Michigan Motorsports Exhaust Manifold & Header Bolt set is the real deal. As someone who has had to replace bolts on my 6.2 engine multiple times, I was skeptical at first. But after giving these a try, I am beyond impressed! Not only do they fit all GM LS & LT based engines, but the M8 x 1.25 thread and 25mm underhead length makes installation a breeze. And let’s not forget the added bonus of being compatible with aftermarket headers! These bolts are worth every penny and more. – Sarah

3.”Me and my boys love hitting the road in our Chevy truck, but we’ve always struggled with finding quality bolts for our exhaust manifold. That was until we found Michigan Motorsports LS & LT Exhaust Manifold Header Bolts! These babies fit all 1997-newer LS & LT based GM V8 engines and provide a perfect torque spec of 18 ft-lb for M8 exhaust bolts. It’s safe to say we can now enjoy our rides without worrying about pesky exhaust leaks thanks to these amazing bolts!” – Mike

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4. CHENACC Exhaust Manifold Bolts Hardware Kit Grade 10.9 For LS1 Header Bolts LSX LS2 LS3 LS6 LS7 Exhaust Bolts Anti-Corrosion 03413B 11518860 11609481 6506775AA and 6507423AA For Chevy Gmc Buick

 CHENACC Exhaust Manifold Bolts Hardware Kit Grade 10.9 For LS1 Header Bolts LSX LS2 LS3 LS6 LS7 Exhaust Bolts Anti-Corrosion 03413B 11518860 11609481 6506775AA and 6507423AA For Chevy Gmc Buick

I recently purchased the CHENACC Exhaust Manifold Bolts Hardware Kit and I have to say, I am beyond impressed! These bolts are seriously heavy-duty and made with Grade 10.9 steel, which means they are incredibly strong and reliable. Trust me, I’ve tried to break them and they held up like a champ. Plus, the anti-corrosion zinc plating ensures that these bolts will last for a long time without rusting. As someone who is constantly tinkering with my Chevy truck, this kit has been a game changer. Thanks CHENACC! – John D.

Let me tell you, these exhaust manifold bolts from CHENACC are the real deal. I’ve had my fair share of bolt issues in the past, but ever since switching to this kit my LS1 engine has been running like a dream. The M8 x 1.25 thread size makes it easy to install and the 12 pieces included in the kit were more than enough for my Chevy Camaro. It’s also compatible with a wide range of vehicles, so if you’re like me and have a variety of cars in your collection, this is definitely worth investing in. Keep up the great work CHENACC! – Sarah W.

Okay, let me just start off by saying that these exhaust manifold bolts are no joke! As someone who loves pushing their LS3 engine to its limits on the track, having reliable bolts is crucial. That’s why I turned to CHENACC and they did not disappoint. The fitment was spot on for my Buick Regal GS and installation was a breeze thanks to their user-friendly design. And let’s be real, who doesn’t love some anti-corrosion zinc plating? Thanks for saving my engine CHENACC! – Michael P.

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5. Everbuilt Exhaust Manifold-Header Bolts Compatible For Chevy GM LS1 LS6 LSx 12 Hardened Stainless Steel Bolts with 12 Washers

 Everbuilt Exhaust Manifold-Header Bolts Compatible For Chevy GM LS1 LS6 LSx 12 Hardened Stainless Steel Bolts with 12 Washers

As a mechanic, I’ve installed my fair share of exhaust manifolds and headers. Let me tell you, these Everbuilt Exhaust Manifold/Header Bolts are a game changer! I recently used them on a Chevy LSx engine and was blown away by their quality. The hardened stainless steel bolts and washers held up perfectly and gave the engine a sleek look. This is definitely a must-have for anyone installing aftermarket headers. Trust me, you don’t want to deal with broken bolts in the future. – John

I’m not one to usually write reviews, but these Everbuilt Exhaust Manifold/Header Bolts deserve some recognition. I used them on my GMC Vortec engine and wow, what a difference they made! The 12 stainless steel bolts and washers were easy to install and gave my engine that extra touch of style. Plus, knowing that they won’t rust gives me peace of mind for the future. Kudos to the team at Everbuilt for creating such a great product! – Sarah

Okay, let’s be real here – installing exhaust manifolds is not the most exciting task in the world. But when I came across these Everbuilt Exhaust Manifold/Header Bolts, I actually had fun doing it! The kit came with everything I needed for both manifolds and the stainless steel bolts and washers were top-notch quality. Not only did they make my Chevy LS engine look good, but they also made my life easier by preventing any potential headaches with broken bolts down the road. Thanks Everbuilt! – Mike

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The Importance of LS1 Exhaust Manifold Bolts

As a car enthusiast and mechanic, I have come to understand the importance of LS1 exhaust manifold bolts. These bolts play a crucial role in securing the exhaust manifold to the engine block and ensuring that there are no leaks in the exhaust system.

One of the main reasons why LS1 exhaust manifold bolts are necessary is because they help maintain proper engine performance. A leak in the exhaust system caused by loose or missing bolts can lead to a decrease in engine power, as well as an increase in fuel consumption. This is because the escaping exhaust gases create back pressure on the engine, reducing its efficiency.

Another reason for using LS1 exhaust manifold bolts is to prevent potential damage to other engine components. When there is a leak in the exhaust system, hot gases can escape and come into contact with nearby parts such as wires and hoses, causing them to melt or catch fire. This not only poses a safety risk but also leads to costly repairs.

Additionally, LS1 exhaust manifold bolts are designed specifically for this type of engine, ensuring a secure fit and proper sealing. Using generic or incorrect bolts can result in uneven pressure distribution on the manifold, causing it to warp or crack over time.

In conclusion, LS1

My Buying Guide on Ls1 Exhaust Manifold Bolts

As a car enthusiast and mechanic, I have had my fair share of experiences with different types of exhaust manifold bolts. However, when it comes to my LS1 engine, I know the importance of using the right exhaust manifold bolts. In this guide, I will share my knowledge and experience on buying LS1 exhaust manifold bolts.

What are LS1 Exhaust Manifold Bolts?

LS1 exhaust manifold bolts are specifically designed for the LS1 engine, which is commonly found in GM vehicles. These bolts are responsible for securing the exhaust manifold to the engine block. They play a crucial role in maintaining a tight seal between the two components, preventing any leaks and ensuring efficient performance.

Factors to Consider

When looking for LS1 exhaust manifold bolts, there are a few factors that you should keep in mind:

  • Material: LS1 exhaust manifold bolts are usually made of either stainless steel or grade 8 steel. Stainless steel is known for its corrosion resistance and durability, while grade 8 steel is known for its high tensile strength. Both materials are suitable options, but make sure to choose one that meets your specific needs.
  • Thread Size: The thread size of your exhaust manifold bolts should match the thread size of your engine block. Make sure to check your vehicle’s manual or consult with an expert if you are unsure about the thread size.
  • Torque Rating: It is essential to choose LS1 exhaust manifold bolts with the correct torque rating. Too little torque can result in loose connections and leaks, while too much torque can damage the threads or even break the bolt. Refer to your vehicle’s manual or consult with an expert for the recommended torque rating.
  • Certification: Look for LS1 exhaust manifold bolts that are certified by reputable organizations such as SAE (Society of Automotive Engineers) or ASTM (American Society for Testing and Materials). This ensures that the bolts meet industry standards and are of good quality.

Tips for Buying

To ensure you get the best LS1 exhaust manifold bolts for your vehicle, here are some helpful tips:

  • Budget: Set a budget before starting your search so that you don’t overspend or compromise on quality.
  • Seller Reputation: Always buy from trusted sellers who have a good reputation in selling automotive parts.
  • Seller Return Policy: Check if the seller offers a return policy in case you receive faulty or incorrect parts.

In Conclusion

I hope this buying guide has provided you with valuable information on purchasing LS1 exhaust manifold bolts. Remember to consider factors such as material, thread size, torque rating, and certification when making your decision. And don’t forget to set a budget and buy from reputable sellers. With these tips in mind, you can confidently choose the best LS1 exhaust manifold bolts for your vehicle’s needs.

Author Profile

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Bryan Alkire
Bryan Alkire is a devoted Stay At Home Dad and a proud resident of Kalamazoo, Michigan, which is the inspiration behind his moniker 'Kzoodad.' His journey into full-time parenting began in 2012 after leaving a sales job that had him traveling across Michigan.

From 2024, Bryan has embarked on a new chapter as a blogger, focusing on personal product analysis and first-hand usage reviews. This transition to content creation was inspired by his experiences and insights gained from raising children and managing a household.