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  #16 (permalink)  
Old 04-16-2012, 03:38 PM
Brad_81Ford Brad_81Ford is offline
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So, would using the original washers that were on the engine work with the studs and nuts? I still have the exhaust manifold 'log' I took off, as well as all the bolts. I assumed this was a stronger, safer bet. Does your set up work as you described by shaving some of the washer down or is it an on going issue?
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Old 04-16-2012, 03:52 PM
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F-250 restorer F-250 restorer is offline
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Use new studs with old washers shaved down, IF you are using a 4v intake with the Hedman headers. If the flanges are the same thickness, then any system will work.

I've been using the oem washers, shaved down, on my system for almost three years.
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  #18 (permalink)  
Old 04-16-2012, 08:30 PM
Brad_81Ford Brad_81Ford is offline
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Quote:
Originally Posted by F-250 restorer View Post
Use new studs with old washers shaved down, IF you are using a 4v intake with the Hedman headers. If the flanges are the same thickness, then any system will work.

I've been using the oem washers, shaved down, on my system for almost three years.
I will be using the Offenhauser DP intake with the EFI dual manifolds. Does the whole washer thang still apply?
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Old 04-16-2012, 09:30 PM
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Don't think so. We need Harte3 or AbandonedBronco to chime in here. You might want to PM them and ask if they don't put in their two cents. k
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Old 04-17-2012, 09:14 AM
Amphenol Amphenol is offline
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No need to grind the washers if your using the efi manifolds. BTW, I ordered my studs and crimp nuts from truckmeblue.com. But, any do it center will have them.
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  #21 (permalink)  
Old 04-17-2012, 09:16 AM
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I haven't had an issue with the Offy and EFI manifolds. They seem to be the same thickness.

Click the image to open in full size.

Click on this link for the full sized picture. You can see the detail quite a bit better:

1981 Ford Bronco Manifolds | SuperMotors.net
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1984 Ford Bronco. 300I6 Offenhauser C Intake Holley 600 4bbl, 31" BFG A/T, NP435, 3.55 rear 8.8" EFI Manifolds. 2.5" high flow cat/muffler.
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Old 04-19-2012, 01:13 PM
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Wagonboy Wagonboy is offline
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The dorman studs i have found say they are grade 8.


Dorman Products - 675-101.1

Someone else please verify this size for me, please?


buck .49 at autozone => http://www.autozone.com/autozone/acc...er=894808_0_0_
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Old 04-19-2012, 06:06 PM
gudor gudor is offline
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Quote:
Originally Posted by F-250 restorer View Post
Google: Hillco Fastener Warehouse,inc. I think you can buy online and have shipped.
Tel: 714 657-7442

You need 14 of each of these: AV09686 3/8-1 SAE 3/8-5/8 USS X 2 overall *(I like to use the 2 1/8" studs if they have them.

9SAE500HD 1/2 SAE Heavy Duty Flat Washer
8SAE310 5/16 SAE Flat Washer Grade 8 Yellow Zinc
838024GC 3/8-24 Grade C Locknut

Coat the coarse threads with anti sieze compound. Get two 3/8 X 24 nuts, screw them on the fine thread end and torque a bit against each other. Then insert into head and tighten with open end wrench 20 lbs torque, approx. Put an open end wrench on each nut, and remove nuts. Repeat 14 x.

Use Mr. Gasket #260 int/exh gasket.



Thank you F-250...

For those of us struggling to find them on their site, you need to call the company (currently these studs are not located on the website)...so you have to order over the phone
- 714 657-7442
Also, you might ask about pricing for the bolts. I got the 2 1/8" (#
AV09688). They were $2.26 each, or less than $10.00 for a pack of 10. So I just went with two packs of 10 (four of them would be about the same price as 10).
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Old 05-03-2012, 05:55 PM
kas83 kas83 is offline
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Do these studs work on an EFI engine? I'm getting everything together to install my reman'd head on my 92, would be awesome if I could use these instead of dinking around with the bolts. Thanks in advance.
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Old 05-06-2012, 08:31 PM
kas83 kas83 is offline
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Anything? I do know there are some differences between EFI n carb heads/engines, just making sure it can be used.
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Old 05-07-2012, 08:58 AM
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Hey Kas83,
I can't think of any reason why it wouldn't work. The bolt pattern and heads are externally nearly identical.
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  #27 (permalink)  
Old 08-29-2012, 11:14 AM
john165 john165 is offline
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Quote:
Originally Posted by Wagonboy View Post


Will these Studs from Autozone work? I am pretty sure the thread size is 3/8-16 on the old bolts. All my bookmarks and such have been deleted and so I was wanting to make sure if these would work. The price is good and my Local Autozone is minutes away.

The info say they are grade 8, resistant to rust while being 2 inches long.
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Old 08-29-2012, 11:14 AM
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