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HyperPak exhaust manifolds
http://slantsix.org/forum/viewtopic.php?f=19&t=63304
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Author:  Michael Sargeant [ Wed Feb 13, 2019 5:49 pm ]
Post subject:  HyperPak exhaust manifolds

Does any one have knowledge of how many sets of HyperPak exhaust manifolds the factory produced ?

Author:  hyper_pak [ Wed Feb 13, 2019 6:08 pm ]
Post subject:  Re: HyperPak exhaust manifolds

Mike, I don't know if anyone would know the answer. I know the history of my parts. Bought new in 1961, went on a Lancer and raced from day one. Second owner used them on a Studebaker circle track car in the mid 60's. Second owner sold them to me in 1972. In my experience you will find about 5 to 10 intakes to every set of exhaust manifolds you find. You could buy the items without buying the kit. I have thought about doing a registry of parts just out of interest, but not sure what it would prove. You will never find all them, they are hid away in corners all over the world. I only know about 4 sets, but I don't know much. Maybe owners on SS.Org will respond.

Author:  Michael Sargeant [ Wed Feb 13, 2019 6:24 pm ]
Post subject:  Re: HyperPak exhaust manifolds

Thank you for the reply. I have a set and have been exploring reproducing them for a couple of years now. I'm just trying to get a feel for how many the factory may have originally produced.

Author:  GregCon [ Thu Feb 14, 2019 8:07 am ]
Post subject:  Re: HyperPak exhaust manifolds

What surprises me is no one (I think) has produced a good stainless steel 'shorty' type header for the Slant Six. Something like what Mopar would put on the engine if it were produced today.

Author:  slantzilla [ Thu Feb 14, 2019 8:31 am ]
Post subject:  Re: HyperPak exhaust manifolds

IIRC, there were roughly 200 HPak kits made available for sale. I have an old article on my computer at home, I'll post it when I get home.

Author:  hyper_pak [ Thu Feb 14, 2019 5:34 pm ]
Post subject:  Re: HyperPak exhaust manifolds

I would really like to see that! I have heard stories about dealers throwing them in the dumpsters after they set on shelves for years.

Author:  hyper_pak [ Thu Feb 14, 2019 5:41 pm ]
Post subject:  Re: HyperPak exhaust manifolds

So I just did the math, the complete kit was 403.30. I chose 1961 and adjusted for inflation that is $ 3,395.17. It doesn't take much thought to figure not many people would fork out that much cash back in he day.

Author:  slantzilla [ Thu Feb 14, 2019 6:09 pm ]
Post subject:  Re: HyperPak exhaust manifolds

Image

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Author:  slantzilla [ Thu Feb 14, 2019 6:11 pm ]
Post subject:  Re: HyperPak exhaust manifolds

Image

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Not sure where I found this posted before, but I found it in an old folder in my Downloads yesterday while cleaning out old memes. :mrgreen:

Author:  Dart270 [ Fri Feb 15, 2019 2:17 am ]
Post subject:  Re: HyperPak exhaust manifolds

Cool, thanks for posting!

Lou

Author:  Greg Ondayko [ Fri Feb 15, 2019 5:49 am ]
Post subject:  Re: HyperPak exhaust manifolds

Yes!

THe Dont sell the Hyper-pack to anybody Sub section are wise words. My 69 Dart is just that.

Idles between 500-1800 RPM - THe hotter it gets the better - below 60°F fuggadabout it. It would have to be driven with 3 feet.

:-)


Thanks for posting Dennis!
Greg

Author:  Greg Ondayko [ Fri Feb 15, 2019 5:51 am ]
Post subject:  Re: HyperPak exhaust manifolds

hyper_pak wrote:
So I just did the math, the complete kit was 403.30. I chose 1961 and adjusted for inflation that is $ 3,395.17. It doesn't take much thought to figure not many people would fork out that much cash back in he day.



Comparable to a well engineered Turbo Upgrade today - People sure buy those!

Greg

Author:  drgonzo [ Fri Feb 15, 2019 7:04 am ]
Post subject:  Re: HyperPak exhaust manifolds

Thanks for posting that Zilla. Greg what cam are you using with your Hyper-pack set up and would it still be your choice if you were doing that engine over?
Thanks,
Brad

Author:  Greg Ondayko [ Fri Feb 15, 2019 8:54 am ]
Post subject:  Re: HyperPak exhaust manifolds

drgonzo wrote:
Thanks for posting that Zilla. Greg what cam are you using with your Hyper-pack set up and would it still be your choice if you were doing that engine over?
Thanks,
Brad



Yes I dont care about the idle.. if i waned good idle i woukd go efi or different cam.

Cam is old mopar performance .528" lift. Not sure of duration.

I use 1.6 roller rockers for a .562 total lift.

Also Some Info Here:
viewtopic.php?f=6&t=13007

Greg

Author:  drgonzo [ Fri Feb 15, 2019 10:13 am ]
Post subject:  Re: HyperPak exhaust manifolds

Thanks Greg.

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