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Old 02-15-2020, 11:17 AM   #1
Shelbycsx
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Default Motor with no serial number

I take it this is a b motor. 5-24-48 stamped on head 4 bolt water pump, oil pan looks like an A pan doesn't look modified. Looks like an I stamped on the timing cover
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Old 02-15-2020, 11:31 AM   #2
Sunnybrook Farm
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Default Re: Motor with no serial number

Yes it has the fuel pump opening covered up so it was used in an A or commercial setting for something that didn't need a fuel pump. So at least a 32 or later, the head could be from a variety of places I guess.
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Old 02-15-2020, 11:42 AM   #3
abachman3
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Default Re: Motor with no serial number

Looks like a 'B' motor, as it has the Fuel Pump casting in the block. The head could be a replacement and dated when it was made. The oil filler tube looks like Model A, as does the Oil Pan.
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Old 02-15-2020, 11:58 AM   #4
Bob C
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Default Re: Motor with no serial number

The pan has the dimples to clear the B rod nuts.
The B engine number was stamped on the top of the flywheel housing.



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Old 02-15-2020, 12:13 PM   #5
Jim Brierley
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Default Re: Motor with no serial number

I thought possibly a diamond B but that is the worst looking diamond I have ever seen and see no date cast near the fuel pump boss, so not a diamond block. Your pan is also a B, with the rear part cut off, necessary when using an A bell housing.
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Old 02-15-2020, 12:22 PM   #6
PC/SR
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Default Re: Motor with no serial number

I do not know B's. For my education is the vertical filler tube normal?
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Old 02-15-2020, 03:10 PM   #7
Charlie Stephens
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Default Re: Motor with no serial number

Quote:
Originally Posted by PC/SR View Post
I do not know B's. For my education is the vertical filler tube normal?
The oil filler tube on the Model B was in the same location as the oil filler tube on the Model A. A very few tubes used on the early Model B's were the same diameter as the model A but longer. Most of the Model B tubes were a larger diameter after they left the block. The hole in the block for the tubes was the same size for both Model A and Model B engines.

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Old 02-15-2020, 06:32 PM   #8
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Default Re: Motor with no serial number

Be interesting to know if this a counterweight crank engine. Also the pattern of that combustion chamber.

With the oil pump cover off, you might look in and get a peek at that crank.

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Old 02-16-2020, 12:07 PM   #9
Bob Bidonde
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Default Re: Motor with no serial number

The motors in my Coupe and Victoria are aftermarket Model "B," but it is unknown when my engines were cast, and by whom.
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Old 02-16-2020, 12:13 PM   #10
Jim Brierley
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Default Re: Motor with no serial number

Bob, If yours are diamond blocks, there is a date-code in front of and above the fuel pump boss, sometimes hard to decipher.
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