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Oversize Valve Source?
https://www.slantsix.org/forum/viewtopic.php?t=67018		 Page 1 of 2
Author:  Walter Lee Jackson [ Wed Jan 11, 2023 5:05 pm ]
Post subject:  Oversize Valve Source?
Who has them?

Or, what valve can be made to fit?

TIA

--Walt Jackson
Author:  Greg Ondayko [ Wed Jan 11, 2023 5:25 pm ]
Post subject:  Re: Oversize Valve Source?
Si lists the 1.70/ 1.44 valves in their catalog.

http://sivalves.com/flipbook/2016-SI-Catalog.html#p=22

Greg
Author:  DadTruck [ Wed Jan 11, 2023 5:33 pm ]
Post subject:  Re: Oversize Valve Source?
Hughes Engines

https://www.hughesengines.com/Index/pro ... AtMTk4Nyk=

If I ever do another slant I plan to see what they have in Mopar cam lobe profiles.

But back on valves, using Chevy or Ford valves gets you to smaller diameter valve stems.
I have Ford 289 valves / beehive springs in the slant in the 68 Barracuda
Author:  Greg Ondayko [ Wed Jan 11, 2023 5:45 pm ]
Post subject:  Re: Oversize Valve Source?
John if you are using the smaller stem valves, then you need to have the guides replaced and resized to match correct?
Author:  CNC-Dude [ Wed Jan 11, 2023 6:13 pm ]
Post subject:  Re: Oversize Valve Source?
Greg, that's a relatively easy task. You yourself can buy K-line bronze valve guide liner kits from Goodson and other companies that sell automotive tooling and install them with basic hand tools you probably already have. You still may need a shop to hone the guides for you unless you want to purchase the honing mandrel and other accessories as well. Going to 5/16" stems or even to 7MM from the stock Slant stem size really opens up valve selection and tremendous airflow improvements over the stock valves.
Author:  Greg Ondayko [ Wed Jan 11, 2023 6:17 pm ]
Post subject:  Re: Oversize Valve Source?
I like the Idea, I just have no Idea on what parts to buy or how to proceed to do that as I have never repaced any seats or guides in a head.
Author:  CNC-Dude [ Wed Jan 11, 2023 6:30 pm ]
Post subject:  Re: Oversize Valve Source?
Its really pretty easy. Hit me up sometime and I'll walk you through it!
Author:  slantzilla [ Wed Jan 11, 2023 11:31 pm ]
Post subject:  Re: Oversize Valve Source?
My first Jeffrey head has SB Ford valves in it. The second one has Ferrea valves.
Author:  hyper_pak [ Thu Jan 12, 2023 5:52 am ]
Post subject:  Re: Oversize Valve Source?
Quote:
My first Jeffrey head has SB Ford valves in it. The second one has Ferrea valves.
Well.....La T Da!!!
Author:  slantzilla [ Thu Jan 12, 2023 5:55 am ]
Post subject:  Re: Oversize Valve Source?
Will you still be yucking it up watching the back end of my Valiant drive outof your life Colt boy? :mrgreen:
Author:  hyper_pak [ Thu Jan 12, 2023 8:55 am ]
Post subject:  Re: Oversize Valve Source?
LOL
Author:  Rick Covalt [ Thu Jan 12, 2023 9:03 am ]
Post subject:  Re: Oversize Valve Source?
You'll both be following me!! :D :D
Author:  slantzilla [ Thu Jan 12, 2023 9:45 am ]
Post subject:  Re: Oversize Valve Source?
Quote:
You'll both be following me!! :D :D
:roll: :roll: :roll: :roll: :roll: :roll: :roll:

Care to make any wagers on that tuff guy? :lol: :lol: :lol: :lol: :lol:

Just for Stan, I don't know what the 3rd Jeffrey head has in it. :mrgreen: :mrgreen: :mrgreen: :mrgreen:
Author:  hyper_pak [ Thu Jan 12, 2023 10:57 am ]
Post subject:  Re: Oversize Valve Source?
I can only guess what might be......
I would guess Sodium Filled, Inconel, Helium infused Ford Stuff.
And in a sectioned, welded, epoxy ported super duper head.

And all I have is some 20 year old "Street Motor"
Oh how can I have any chance.....

Mokan in April???
Author:  Rick Covalt [ Thu Jan 12, 2023 1:39 pm ]
Post subject:  Re: Oversize Valve Source?
Quote:
Care to make any wagers on that tuff guy?
Yep! I'll bet you a large coffee and a peach tea! How's that! :D :D
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