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05-16-2016, 10:22 PM | #1 |
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offy trouble ??
Good evening I bought a multi carb offenhauser manifold for my flathead, and it is beautiful. My trouble is that the carbs won't fit. I'm using 94's
3 to be exact. I was only planning on using two. The trouble is the spacing. The front and back work great, bolt right up, but the center one lacks enough room for the carb. It needs about a half inch to work. Is there different carbs to use in multi setups? or did I get an off breed offy manifold. I would appreciate any input. It is a really weird problem. Thank you Pat |
05-16-2016, 10:36 PM | #2 |
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Join Date: May 2010
Location: Southern France
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Re: offy trouble ??
Not positive but I think they are designed for 3 - 48's.81's or 97's.
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05-16-2016, 10:46 PM | #3 |
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Re: offy trouble ??
Yeah Deuce That's what I kinda think. I just wanted some ideas. I have no experience with the multi carb setup so I'm learning as I go.
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05-16-2016, 11:01 PM | #4 |
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Location: Napier, New Zealand
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Re: offy trouble ??
Offy triples do not take 94s. I think Edelbrocks will. Change the carbs or change the manifold.
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05-17-2016, 12:25 AM | #5 | |
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Location: Eagle River,Alaska
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Re: offy trouble ??
Quote:
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05-17-2016, 03:04 PM | #6 |
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Re: offy trouble ??
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05-17-2016, 03:57 PM | #7 |
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Re: offy trouble ??
There is a common kludge for this...it works, but I certainly don't like it. You file down the front screw boss on the center carb and perhaps slightly notch the rear flange on front carb til you get a fit. Looks like the desperate vandalism that it is, but many have done this to get a usable setup without popping for Strombergs.
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05-17-2016, 04:23 PM | #8 |
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Re: offy trouble ??
Yes, I've done that a few times myself. One question Why the 3 duces? Just for looks or do you need it for your fire breathing 294?? Now if foe looks, you can carve up an old set of 94's and put block off plates under them. Dummy fuel lines and a good 94 in the middle. I have a friend with a 284 Ardun done this way and rins great ALL THE TIME, but when you pop the hood, Tripples. Now if you plan on running 97's talk to uncle Max, only way to fly.
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05-17-2016, 11:50 PM | #9 |
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Join Date: May 2010
Location: Eagle River,Alaska
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Re: offy trouble ??
Pat, I think that I will be able to get away with about 1/4 to 3/8 inch spacer for the center carb. I havn't looked at mine for awhile. I have had too many sticks in the fire for some time now. I seem to pick up too many projects & get lost in them. I spoke from memory as that's about where I was out on my current build when I got distracted. Bill
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05-18-2016, 12:12 AM | #10 |
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Location: Las Vegas, NV
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Re: offy trouble ??
Ditto on the EDELBROCK 500.
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05-18-2016, 12:12 AM | #11 |
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Join Date: May 2010
Location: DeWitt, IL
Posts: 53
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Re: offy trouble ??
They make a triple intake with wider spacing for using 94's. I made a wedge for the front and rear carbs to tilt them away from center carb because I too have an intake with the narrower spacing.
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05-18-2016, 10:04 AM | #12 |
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Re: offy trouble ??
Hi guys. It's nice (sort of), to know I'm not alone with this !! After being scared off of epay, I think I'll rig up some kind of spacer. I can't handle the prices of carbs. Thanks for the input. I'll post a pic of what I put together. Pat
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05-18-2016, 10:44 AM | #13 |
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Re: offy trouble ??
I think the only dis-advantage of the Edelbrock 500 carb (and I mean the only dis-advantage) would be that it is wider than other 4 barrels, and may not fit well between the water outlet tubes on the heads of a 59AB type flathead V8. Sal |
05-18-2016, 10:48 AM | #14 |
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Re: offy trouble ??
This set-up is one I used in the past on an Offy three-two intake. It makes it very similar to a "super dual" set-up in that it places the carbs over the ports in the block. I used it with a straight linkage and it worked well. As you can see I used a block-off plate at the center carb position.
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05-18-2016, 11:00 AM | #15 |
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Location: Minnesota, Florida Keys
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Re: offy trouble ??
I can relate to this. Several years ago, I found a Weiand "4 in a row" manifold for the Chrysler hemi in my dirt car. I also had 4 nice 94's. I ended up having to buy 4 97's. All of a sudden, the deal I got on the manifold wasn't so good.
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