Looking for Tips on Small Block Chevy Exhaust Manifolds

Maintenance and Repairs
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Seeking Advice on Small Block Chevy Exhaust Manifolds

I’ve been working on my small block Chevy and I’m in the process of upgrading the exhaust system. I want to make sure that I choose the right exhaust manifold that is compatible and meets my performance needs.

Key Points I’m Considering:

  • Compatibility: What should I look for to ensure the manifold fits my engine properly?
  • Performance Upgrades: Are there any aftermarket options that can boost performance?
  • Installation Tips: Any specific tools or techniques I should know about?
  • Troubleshooting: What common issues should I be aware of when installing or using these manifolds?

Questions:

  1. Has anyone had experience with a particular brand or type of manifold that works well?
  2. Are there any notable performance differences between stock and aftermarket options?
  3. How do you best prevent leaks after installation?

I’m eager to hear your experiences or any advice you can share. Thanks in advance!

1 Like
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I’ve been running the stock manifolds, but I noticed they really limit performance. Have you considered aftermarket options? They can significantly enhance airflow.

4 Likes
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Absolutely! Headers can make a big difference. Just make sure you check for fitment, especially with different chassis!

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Performance headers are a great choice. They can boost horsepower by optimizing exhaust flow. Just ensure you balance torque as well, or you might lose some low-end power.

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What about wrap or heat shields? I’ve heard that helps with heat management, which can be good for performance over time.

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That’s true! Anyone using shorty headers instead of long tubes? I’ve been curious about their performance impact.

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I prefer long tube headers. They definitely provide more horsepower, but sometimes it can come at the cost of torque. It’s all about what you want from your setup!

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Exactly! How about sound? That’s a big factor for many people when choosing their manifolds.

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Sound is crucial! Metallic headers can give a great tone. Just be ready for some extra noise if you go for open tube headers.

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I’ve seen some folks run into fitment issues with aftermarket headers. Are there particular brands anyone would recommend for ease of installation?

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I had good luck with Hedman headers. They were easy to install and significantly improved my torque.

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Regarding horsepower vs. torque, is there a ‘right’ choice? I feel like it depends on whether you want to cruise or race.

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It’s a balancing act! I think headers generally lean towards horsepower, while manifolds might maintain low-end torque better.

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True! It’s tricky to find that sweet spot. Has anyone done a side-by-side comparison on the road?

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Not personally, but I’ve heard good things about dyno testing. It gives a clearer picture of what different setups can offer.

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Sounds like some serious testing! Maybe I should just flip a coin! Just kidding. I appreciate all these insights!

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We all do! I think it’s great when we can share this knowledge and help each other out.

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I hope this thread helps you find what you’re looking for! Never underestimate good advice from others.

6 Likes
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I’m glad you’re diving into this! Be sure to have a good set of sockets ready; an 8mm for the bolts is key. Don’t forget to use some anti-seize on the threads too!

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Great advice! I’d also recommend a torque wrench to avoid over-tightening. Any specific tools you found most helpful?