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04-26-2020, 10:16 PM | #1 |
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Location: Nor Cal
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Model B Motor Serial # Question
I have an overhead valve Crager head on the model B motor in my 1930 roadster. The serial number of the motor starts with the Star then the letter and number R4-.....M, then 5 numbers and ends with the letter M. I can't find any reference for B motors on any sites with that beginning letter number configuration. Is anyone here familiar with that configuration?
Thanks Last edited by Ratatat; 04-27-2020 at 01:52 PM. |
04-26-2020, 10:34 PM | #2 |
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Location: Oregon
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Re: Model B Motor Serial # Question
I have seen a number of blocks with that configuration (or with RF-....), all from Northern California. Some have suggested that these blocks originated from the Richmond, CA Ford plant as replacement engines, some time in the 1930's and early 1940's.
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04-26-2020, 10:58 PM | #3 |
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Re: Model B Motor Serial # Question
It may be a diamond block, these were replacement engines supplied by Ford in the late 30's and also used as industrial engines.
The original "B" engines that went into 32 -34 Fords were not stamped with a serial number like the Model A engines. The B engine had the serial number on the top of the flywheel housing. Chris w. |
04-26-2020, 11:41 PM | #4 |
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Re: Model B Motor Serial # Question
I have a B engine with out any numbers .
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04-27-2020, 05:36 AM | #5 |
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Re: Model B Motor Serial # Question
The B engines built at Fords Dagenham England plant had the serial stamped on the block pad .British law required the engine itself to be stamped .
John in Suffolk County England . |
04-27-2020, 05:24 PM | #6 |
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Re: Model B Motor Serial # Question
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05-04-2020, 08:51 PM | #7 |
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Re: Model B Motor Serial # Question
I think Model B Serial Numbers were on the Bell Housing.
If the markings on the block have Three numbers after the letters R & M, like ” R 010” and “M 020”; it is probably an engine rebuilders marking for the Rods (R) and Main’s (M) size. |
05-05-2020, 09:32 AM | #8 |
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Re: Model B Motor Serial # Question
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