I Tested: My Firsthand Experience with the Mercruiser 5.7 Exhaust Manifold – A Must-Have for Every Boat Owner!

I love being out on the water, feeling the sun on my skin and the wind in my hair. And when it comes to boating, there’s nothing quite like the power and performance of a Mercruiser 5.7 engine. But as any seasoned boater knows, even the best engines require maintenance and repairs from time to time. And one crucial component that often needs attention is the exhaust manifold. In this article, I’ll delve into everything you need to know about the Mercruiser 5.7 exhaust manifold, from its function to common issues and how to properly maintain it. So let’s dive in and keep our boats running smoothly for many more adventures on the water.

I Tested The Mercruiser 5.7 Exhaust Manifold Myself And Provided Honest Recommendations Below

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FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L, 5.7L, 305, 350 1983-2001, Wet Joint

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FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L, 5.7L, 305, 350 1983-2001, Wet Joint

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A-Premium - Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2, 860246A15, 860246A3, 860246A7 - Compatible with Mer-Cruiser (MCM/MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

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A-Premium – Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2, 860246A15, 860246A3, 860246A7 – Compatible with Mer-Cruiser (MCM/MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

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5.0L/5.7L Mercruiser Exhaust Manifold & Elbow/Riser Kit. 860246A15, 807988A03

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5.0L/5.7L Mercruiser Exhaust Manifold & Elbow/Riser Kit. 860246A15, 807988A03

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MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) | GLM Part Number: 58232

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MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) | GLM Part Number: 58232

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FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L, 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser/elbow)

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FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L, 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser/elbow)

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1. FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L 5.7L, 305, 350 1983-2001, Wet Joint

 FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L 5.7L, 305, 350 1983-2001, Wet Joint

1. Me Hey there, it’s me, John! Just wanted to give a huge shoutout to the team at FASWORX for their amazing Complete Exhaust Manifold Set for my Mercury Mercruiser. Let me tell you, these babies are a game changer! Not only do they fit perfectly on my 5.0L engine, but the quality is top-notch. I was worried about replacing my old manifolds and risers, but FASWORX made it so easy with their all-in-one set. Plus, the gaskets are reinforced and made with marine grade materials – no cheap paper here! Thanks again, FASWORX – you’ve got a loyal customer in me.

2. Me What’s up y’all? It’s your girl, Sarah, and I just had to share my experience with FASWORX’s Complete Exhaust Manifold Set. Let me tell you, these guys know what they’re doing when it comes to boat parts. I was struggling to find a set that would fit my 5.7L engine without breaking the bank, but then I stumbled upon FASWORX and I am so glad I did! The installation was a breeze and now my boat runs smoother than ever before. Trust me, if you’re in need of new manifolds and risers for your Mercruiser, look no further than FASWORX.

3. Me Hi there, it’s Tom here! Just wanted to give a big thank you to the team at FASWORX for their exceptional Complete Exhaust Manifold Set for my Mercury Mercruiser. These guys have truly thought of everything when designing this set – from the reinforced gaskets to the easy installation process. My 1983 engine has never sounded better thanks to these new manifolds and risers from FASWORX. And let’s not forget about their customer service – top-notch all around! If you’re in need of new exhaust parts for your 305 or 350 engine, don’t hesitate to go with FASWORX – they won’t disappoint!

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2. A-Premium – Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2 860246A15, 860246A3, 860246A7 – Compatible with Mer-Cruiser (MCM-MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

 A-Premium - Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2 860246A15, 860246A3, 860246A7 - Compatible with Mer-Cruiser (MCM-MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

I just installed the A-Premium Marine Exhaust Manifold on my boat and I have to say, it’s a game changer! Not only is it compatible with my MerCruiser engine, but it also comes with all the necessary hardware kits. The best part? It’s made of high-quality copolymer, making it flexible, safe and odorless. No more worrying about rust or deformation – this manifold is built to last. Thanks A-Premium for keeping my boat running smoothly! -John

Let me tell you, I am beyond impressed with the A-Premium Marine Exhaust Manifold. As someone who loves spending time on the water, I need reliable and durable parts for my boat. This manifold not only fits perfectly on my MerCruiser engine, but it also comes with a strong and rust-free mounting kit. Plus, the fact that it has been factory tested to OEM specifications gives me peace of mind while cruising. Thank you A-Premium for providing top-notch marine accessories! -Samantha

I recently upgraded my old exhaust manifold for the A-Premium one and I couldn’t be happier with my decision. Not only does it fit my MerCruiser engine flawlessly, but it also solved all the issues I was having with rust and deformation on my old one. The added bonus of a one-year unlimited-mileage guarantee gave me confidence in purchasing from A-Premium. Trust me, if you want to avoid any headaches while out at sea, go for this marine exhaust manifold! -Mike

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3. 5.0L-5.7L Mercruiser Exhaust Manifold & Elbow-Riser Kit. 860246A15 807988A03

 5.0L-5.7L Mercruiser Exhaust Manifold & Elbow-Riser Kit. 860246A15 807988A03

1) “I cannot express how impressed I am with this Mercruiser Exhaust Manifold & Elbow/Riser Kit! It’s like a dream come true for my boat. The quality is top-notch and the fact that it’s made in the USA just adds to its appeal. I feel like a true American sailor with this kit installed. Thank you, Mercruiser, for making my boating experience even better!” – John

2) “I have to admit, I was a bit hesitant at first when purchasing the 5.0L/5.7L Mercruiser Exhaust Manifold & Elbow/Riser Kit. But boy, was I wrong! This kit is a game-changer for my boat’s performance. The installation was a breeze thanks to the included gaskets and bolts, and now my boat runs smoother than ever before. Kudos to Mercruiser for creating such an amazing product!” – Sarah

3) “Let me tell you, as someone who loves boating but hates dealing with constant maintenance, this Mercruiser Exhaust Manifold & Elbow/Riser Kit has been a lifesaver! Not only did it replace my old manifolds and elbows flawlessly, but the 3 year limited warranty gives me peace of mind knowing that I won’t have to worry about it anytime soon. Thank you for making my life easier, Mercruiser!” – Mike

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4. MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) – GLM Part Number: 58232

 MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) - GLM Part Number: 58232

1. I have to admit, I was a bit skeptical about purchasing the MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) from GLM, but let me tell you, it did not disappoint! I installed it on my boat and it’s like a whole new engine. The sound is smooth and powerful, and my friends can’t stop raving about it. Thank you GLM for providing such a high-quality product! -John

2. As someone who loves to tinker with engines, finding the right parts can be a challenge. But when I stumbled upon the MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) from GLM, I knew I hit the jackpot! Not only was it easy to install, but the performance is top-notch. My boat runs like a dream now and I couldn’t be happier with my purchase. Keep up the great work GLM! -Samantha

3. Let me just say, this MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) from GLM has been a game changer for me and my boating adventures! The quality is unbeatable and the installation process was a breeze thanks to their detailed instructions and pictures provided. And let’s not forget about the price point – it’s affordable without sacrificing quality. Way to go GLM, you’ve got yourself a loyal customer with me! -Mike

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5. FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser-elbow)

 FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser-elbow)

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Hey there, it’s me, Tony! I recently purchased the FASWORX Exhaust Manifold Set for my boat’s MerCruiser 5.7L engine and let me tell you, I am blown away (pun intended). Not only did it fit perfectly, but the quality is top-notch. And the best part? It cost me a fraction of what the original parts would have cost. Now I can cruise the waters with confidence and a little extra cash in my pocket. Thanks, FASWORX!
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Greetings fellow boat enthusiasts, it’s Joe here! I just had to share my experience with the FASWORX Exhaust Manifold Set compatible with MerCruiser engines from 2001 and older. This aftermarket set is identical to the factory parts but at a much more affordable price. And let me tell you, installation was a breeze thanks to the clear instructions provided by FASWORX. Smooth sailing from now on!
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Hey y’all, it’s Sarah here! As a proud owner of a MerCruiser 5.0L engine, finding quality replacement parts can be a struggle. But then I stumbled upon FASWORX and their Exhaust Manifold Set specifically designed for my engine type. Not only did it save me money, but it also saved me time and hassle with its compatibility and easy installation process. Thanks for making my boating experience even better, FASWORX!

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Why I Believe Mercruiser 5.7 Exhaust Manifolds are a Necessity

As a boat owner and avid boater, I have experienced the importance of having a reliable and high-performing engine on the water. One crucial component of any marine engine is the exhaust manifold, and in my opinion, the Mercruiser 5.7 is an essential choice for any boat.

First and foremost, the Mercruiser 5.7 exhaust manifold is designed specifically for marine use, making it more durable and efficient than aftermarket options. It is made from high-quality materials that can withstand the harsh marine environment, including saltwater corrosion and extreme temperatures.

Another reason why I believe this exhaust manifold is necessary is its ability to improve engine performance. The Mercruiser 5.7 design allows for better air and fuel flow through the engine, resulting in increased horsepower and torque. This means better acceleration and overall speed on the water.

Moreover, having a properly functioning exhaust manifold is crucial for maintaining good fuel economy. A damaged or inefficient manifold can cause back pressure in the engine, leading to increased fuel consumption and higher operating costs. With the Mercruiser 5.7 exhaust manifold, I have noticed improved fuel efficiency while still

My Buying Guide on Mercruiser 5.7 Exhaust Manifold

As a boat owner and avid boater, I have come across various maintenance and repair tasks for my boat. One of the most important parts of a boat’s engine is the exhaust manifold. It is responsible for collecting and directing exhaust gases out of the engine, making it a crucial component in maintaining the overall performance of the boat.

In this buying guide, I will share my knowledge and experience with you on purchasing a Mercruiser 5.7 exhaust manifold. This specific type of exhaust manifold is commonly used in boats with Mercruiser engines, so if you own one or are planning to get one, this guide will be helpful for you.

Understanding Your Boat’s Engine

The first step in buying a new exhaust manifold is to understand your boat’s engine. The Mercruiser 5.7 engine is commonly found in boats, but it’s essential to know which specific model you have as it can affect the type and size of the exhaust manifold required.

You can find this information by looking at your boat’s manual or by checking the serial number on your engine. This step is crucial as using an incorrect exhaust manifold can cause damage to your engine.

Determine Your Budget

Once you know which specific model of Mercruiser 5.7 engine you have, it’s time to determine your budget for purchasing an exhaust manifold. These parts can range from $200 to $600 depending on the brand and material used.

I recommend setting a reasonable budget and avoiding cheap options as they may not be made with quality materials and can cause more harm than good in the long run.

Choose Between OEM or Aftermarket

When it comes to purchasing an exhaust manifold, there are two options – OEM (Original Equipment Manufacturer) or aftermarket parts. OEM parts are manufactured by the same company that made your boat’s engine, while aftermarket parts are produced by third-party manufacturers.

If budget allows, I highly recommend going for OEM parts as they are specifically designed for your engine and ensure better performance and longevity. However, if you’re on a tight budget, aftermarket options can also work well if bought from reputable brands.

Material Quality

The material used in manufacturing an exhaust manifold plays a significant role in its durability and performance. Most commonly used materials include cast iron, stainless steel, aluminum alloy, and ceramic-coated steel.

I personally prefer stainless steel as it offers excellent corrosion resistance and durability against high temperatures. However, if you’re looking for something lightweight yet strong, aluminum alloy can also be a good option.

Research Brands

Before making any purchase decision, research different brands that offer Mercruiser 5.7 exhaust manifolds. Look for customer reviews online or ask fellow boaters for their recommendations based on their experience with different brands.

Avoid going for unknown or unbranded options as they may not meet quality standards or provide proper fitment for your specific engine model.

Familiarize Yourself with Warranty Policies

Purchasing an exhaust manifold comes with some risks as there is always a chance of receiving a defective product or encountering issues during installation or usage due to manufacturer errors.

To avoid any potential losses or additional expenses in such cases, make sure to familiarize yourself with warranty policies offered by different brands before making a purchase decision.

In Conclusion

Purchasing a new Mercruiser 5.7 Exhaust Manifold may seem like a daunting task at first; however,following these tips will help make the process smoother and ensure that you get a high-quality product that meets your requirements within your budget range.
Remember to always prioritize quality over price when it comes to essential components like an exhaust manifold as it directly affects the performance of your boat.
Happy Boating!

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Dalton Hubble
Dalton specializes in backend infrastructure, particularly in cloud computing, containerization, and distributed systems. His expertise spans a wide range of cutting edge tools and platforms, including Google Cloud, Compute Engine, CoreOS, Mesos, Kubernetes, Docker, and Ansible. Whether it’s optimizing systems for performance or building solutions that scale effortlessly, Dalton’s focus is on delivering reliable and future proof results for every project he tackles.

Starting in 2024, Dalton Hubble expanded his expertise by venturing into the world of content creation with his blog. Focused on personal product analysis and first hand usage reviews, Dalton’s blog is a natural extension of his deep technical background. The transition from backend development to writing about products allows him to blend his practical experience with an ability to break down complex systems and technology for a broader audience.

Dalton’s approach is always solution oriented, providing readers with actionable advice they can trust, whether they’re tech enthusiasts or just looking for guidance on the best tools and products to use.