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By PF Arcand - 6 Years Ago
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I'm installing a Ford Autolite 4100 on a ECZ-B intake which for those not familiar with that manifold, has raised flanges, not a completely flat surface. Bought a Mr Gasket (?) #55 gasket. Fitting it, found the venturie holes are too big & it's very likely going to leak vacuum & or fuel. Anybody know of a gasket make with a bit smaller holes? I found someone with a 60s Mustang on the internet that had the same issue, but no positive solution was offered.. Thanks
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By charliemccraney - 6 Years Ago
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As long as the gasket seals the outer perimeter of the flange, it will be fine. I never had any trouble with the common gaskets, which are 1 3/4" bore with the B intake. I think the Mr Gasket #55 is one of the closest matches to the stock flange.
I ran out and checked a 1 3/4" gasket on a modified B intake and the holes look like they will just barely seal. I don't have a #55 gasket but I do have a Holley 390 carb spacer and the holes in that are 1 15/32" which should match about perfectly with the B intake. I can check that on an unmodified intake tomorrow to see how the inner diameter matches up but this should give you an idea. They are all square bore so the hole centers should be the same.
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By 57RancheroJim - 6 Years Ago
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When I went to the Holley 390 I found the correct size gaskets at my local O'Reileys auto parts store sorry don't recall the part number. I couldn't find a correct size 1" phenolic spacer so I had to sandwich two 1/2" together.
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By charliemccraney - 6 Years Ago
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Speedway Motors sell 1" 390 carb spacers. They're the only place I've found them.
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By PF Arcand - 6 Years Ago
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Thanks Charlie & Jim. The #55 gasket does have 1-3/4" holes & they barely cover, maybe by 1/16th" Not going with that.. I'll check into getting a Holley 390 cfm gasket. Also, I considered a 1" phenolic spacer, however using a stock air cleaner on a 57 car it's very doubtfull it will clear the hood. Unfortunately, O'Reillys doesn't operate in western Canada & Speedway is a U.S.A. order. I'll have to check elsewhere.
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By Joe-JDC - 6 Years Ago
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Why not make your own gasket from gasket stock? Most parts stores sell gasket material in sheets. Whenever I need something that is odd size or shape, I use that, and trim with a small scissor, or knife. Make a simple imprint of base by rubbing over the sheet material with hand or ball peen hammer, and cut out following the lines. Joe-JDC
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By KULTULZ - 6 Years Ago
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GOOGLE C2AZ 9447-E. They are still available.
You shouldn't need much over a 1/4" phenolic spacer (IMO).
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By 57RancheroJim - 6 Years Ago
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charliemccraney (2/22/2018)
Speedway Motors sell 1" 390 carb spacers. They're the only place I've found them.
At the time I tried to order one they were out of stock and I was told the supplier had machine problems and they didn't know when they would get them again, they may have them now [quote]
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By 57RancheroJim - 6 Years Ago
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PF Arcand (2/22/2018)
Thanks Charlie & Jim. The #55 gasket does have 1-3/4" holes & they barely cover, maybe by 1/16th" Not going with that.. I'll check into getting a Holley 390 cfm gasket. Also, I considered a 1" phenolic spacer, however using a stock air cleaner on a 57 car it's very doubtfull it will clear the hood. Unfortunately, O'Reillys doesn't operate in western Canada & Speedway is a U.S.A. order. I'll have to check elsewhere.
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By charliemccraney - 6 Years Ago
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Take a look here, https://www.summitracing.com/search/part-type/carburetor-base-plate-gaskets/gasket-opening-style/4-hole/carburetor-flange/square-bore?N=4294943592%2B4294943587%2B4294921888&PageSize=100&SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=carb%20mounting%20gasket Pictures for several, including the #55 look correct. The Fel-pro 1909 specifies 1 31/64" diameter.
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By 2721955meteor - 6 Years Ago
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go to lordco, or any parts store in surrey or lancelet,buy a sheet of thicker gasket material.lik pre. post lay it on manifold and tap the big holes to cut them then, a common hole puncher for the stud holes.. i found with a newer holley no gaskets that come with overhaul kit are correct. you want NO
VACUME LEAKS. so i have no issues with the home made gasket.
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By KULTULZ - 6 Years Ago
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By Ted - 6 Years Ago
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Paul. If you’ll email me a snail mail mailing address, I’ll send you some of the smaller bore 1957 4V intake carburetor flange gaskets. My email address is located under contact info on my website.
http://www.eatonbalancing.com/
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By PF Arcand - 6 Years Ago
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Thanks Ted.. sent my address etc.. Include a note for the cost of envelope & mailing & I'll refund it.. I wonder how many people have installed a gasket & carb on a "B" intake, which didn't seal properly & then blamed the problems on the carb?
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