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By Shaggy - 9 Years Ago
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The ecz 9425-b intake i have came with a slightly angled composite (probably phenolic) spacer. Is this a factory spacer? If there's a factory one, what does it look like?
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By Ted - 9 Years Ago
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The 1957 312 4V engines came with either a ¼” or ½” thick 4 hole carb spacer and those could be either phenolic or aluminum. All the 312 phenolic spacers I have are ½” thick but the aluminum ones come in either thickness. Car versus Thunderbird maybe? Those spacers were not angled and simply raised the carburetor an even amount.
Here’s a picture of each.
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By NoShortcuts - 9 Years Ago
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The '57 Ford 312 carb to intake spacers I've seen were 1/2 inch thick phenolic plastic, dark brown in color. These have had no identifying letters or numbers on them. Also, they had no taper that I observed nor markings to indiate Front.
The '49-'59 Ford car Text Catalog lists 3 spacer part numbers for the 312 engine
B7AZ 9A589-B - use w/ Holley 4 bbl. carb.
B7AZ 9A589-D - use w/Ford and Carter 4 bbl. carb.
B7AZ 9A589-F - (no description of carb assignment given)
I've come across several 1/2 inch thick die cast aluminum carb to intake spacers on '58 Fords equipped with 332 and 352 engines. Like the '57 312 Ford/Mercury phenolic spacers, these were for a small throttle bore Ford (Autolite) or Holley 4150 carbs. The bottom side of the spacer had the casting number EDB-9603-C.
Perhaps there is another carb to intake spacer part number for the 292 Ford big truck engines w/ 4 barrel carbs. -I don't have the truck Text Catalog to reference. MAYBE there was a tapered spacer used on some truck application.
Hope this helps. 
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By NoShortcuts - 9 Years Ago
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Following up on Ted's info. All '57 312 'D' code (single quad, non-supercharged) Thunderbirds used the 1/2 inch phenolic plastic spacers in conjunction with the new for '57 Holley 4150 carburetor.
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By DryLakesRacer - 9 Years Ago
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Possibly marine use? They all seemed to have tapered spacer. Not all Y's had that flat Carter YF set up.
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By Shaggy - 9 Years Ago
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Thanks guys, now that i think about it, yea i bet marine use. Car motors in '57 were red right? this intake was blue.
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By NoShortcuts - 9 Years Ago
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Yes, Shaggy, the three sets of 113 heads I've seen were painted blue and had been removed from marine application y-blocks.
Too, I think that DryLakesRacer is very likely to be correct. Marine application y-blocks using a single four barrel intake manifold may very well have used an angled carburetor spacer. That's a better bet than a heavy duty truck application that I suggested.
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