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Dual Exhaust Questions/Advice

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Old 12-30-2017, 11:35 AM
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Dual Exhaust Questions/Advice

I know not a new subject by any means. Especially with our tight clearanced 3rd gen Camaros. I am planning on a dual exhaust system for my 87. Here is where I have questions. So here is my scenario. I am not moving to an LS based engine, nor do I want one. Call me old school, but I like the standard small block so I have built a good solid balanced 383 using a 1998 4 bolt block, and topped it with AFR heads. I want it to breathe so my goal is true duals. I have been eyeing this dual exhaust kit from Hooker. I have spoken with them and the tech was basically clueless. Here is where all of you come into play. Can I tie this system in with a standard set of SB headers and which ones would work? Throw me under the bus or give me advice, either will be welcome. Thanks in advance.


https://www.holley.com/products/exha.../70501439-RHKR
Old 12-30-2017, 12:23 PM
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Re: Dual Exhaust Questions/Advice

Long story short-- You can do whatever you want if you have a TIG or MIG and a bandsaw. They could be made to work but it will not be a bolt and go setup. It may be easier and cheaper to just use a Y pipe and single inlet dual outlet muffler or some max flow "muffler" like a spintech
Old 12-30-2017, 01:48 PM
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Re: Dual Exhaust Questions/Advice

I’m going with the hooker black heart set up for our cars. I don’t have Ann ls motor either.
Right now the biggest issue I see I’d the spohn cross member.
I’m having a hot rod shop that’s know for fabrication do it up for me.
Old 12-30-2017, 02:08 PM
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Re: Dual Exhaust Questions/Advice

I've always been baffled by people who try to craft a dual exhaust for these cars when I don't think I've ever seen any gains in performance or sound from the Y-pipe, single intermediate pipe and dual outlet which has traditionally been used.
Old 12-30-2017, 03:54 PM
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Re: Dual Exhaust Questions/Advice

It wont do anything useful from a performance perspective and will be difficult to fit. Most engines gain power from the scavenging benefits of a cross over (X or H) pipe making dual exit systems only for looks.

GD
Old 12-30-2017, 04:02 PM
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Re: Dual Exhaust Questions/Advice

Thx guys........keep the comments coming. I will be going dual regardless. We restore antique cars so difficulties are merely another challenge. I am set on it and mostly looking for advice to make this go nice and smooth.
Old 12-30-2017, 04:03 PM
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Re: Dual Exhaust Questions/Advice

Just make sure you include an X pipe in the design or you may lose a measurable amount of power.

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Old 12-30-2017, 04:14 PM
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Re: Dual Exhaust Questions/Advice

Thx
Old 12-31-2017, 10:28 AM
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Re: Dual Exhaust Questions/Advice

I mostly want to see if anyone has experience with the Hooker system I referenced in my initial post. Anyone know anything about this kit?


https://www.holley.com/products/exha.../70501439-RHKR
Old 12-31-2017, 10:35 AM
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Re: Dual Exhaust Questions/Advice

Originally Posted by absaraka
I mostly want to see if anyone has experience with the Hooker system I referenced in my initial post. Anyone know anything about this kit?


https://www.holley.com/products/exha.../70501439-RHKR
Might just want to do a search then. Off the top of my head I think BadNBlk has that exhaust with the crossmember.
Old 01-02-2018, 09:16 AM
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Re: Dual Exhaust Questions/Advice

I just had this system installed in my 82 with a 383. I did have a customer crossmember built. Any headers would work as this system is not designed for standard block headers. It is designed to work with LS headers.
Old 01-02-2018, 09:38 AM
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Re: Dual Exhaust Questions/Advice

Thx Crazynights. Which headers did you use and any issues getting them mated up?
Old 01-02-2018, 10:09 AM
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Re: Dual Exhaust Questions/Advice

You can use any set of headers. Just need to mate the collector area to the blackheart exhaust.
I had a custom cross member built to clear the two pipes mating to the blackheart. You may be able to use oval tubing to also save clearance, but custom double hump member is what i did.
Old 01-02-2018, 10:19 AM
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Re: Dual Exhaust Questions/Advice

Originally Posted by crazynights
You can use any set of headers. Just need to mate the collector area to the blackheart exhaust.
I had a custom cross member built to clear the two pipes mating to the blackheart. You may be able to use oval tubing to also save clearance, but custom double hump member is what i did.
I'll probably stick with Hooker front to rear. Looks like I will be modifying my Spohn crossmember. The system seems like it allows for good clearance otherwise and maintains ground clearance as well. Really appreciate the feedback and your input.
Old 01-02-2018, 01:08 PM
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Re: Dual Exhaust Questions/Advice

If you have Hooker 2210 or Dougs 3321 (same design as the 2210) you should have no issue adding some pipe to the exhaust.
There is a member on this board who put this exhaust on and had a spohn cross member. He modified it very well. If you search hooker blackheart his car should pop up. He's got great pics of the clearance too.
Old 01-02-2018, 01:34 PM
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Re: Dual Exhaust Questions/Advice

Thx......appreciate all the feedback. I'll do a search for that string.
Old 01-31-2018, 07:58 PM
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Re: Dual Exhaust Questions/Advice

It can be done. This is mine that I just finished:



You can read about the build here. Exhaust starts at post 462. I post materials, prices, and process.

https://www.thirdgen.org/forums/memb...1z-ls1-10.html
Old 01-31-2018, 09:32 PM
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Re: Dual Exhaust Questions/Advice

Sweet!
Old 01-31-2018, 09:36 PM
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Re: Dual Exhaust Questions/Advice

That is a nice clean drivetrain and exhaust. Thanks for the input.
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