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04-14-2020, 11:16 PM | #1 |
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1931 engine blocks
Are 31 or late 31 engine blocks any different to earlier blocks?
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04-14-2020, 11:51 PM | #2 |
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Re: 1931 engine blocks
There are a lot of small differences but changing from a 5 main bearing camshaft in the earlier to a 3 bearing camshaft is the first one that comes to mind. Also check out Steve Pluckers site, http://www.plucks329s.org/40hb.htm
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04-15-2020, 03:56 AM | #3 |
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Re: 1931 engine blocks
Pity they didn't go from 3 main bearings to 5!
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04-15-2020, 09:13 AM | #4 |
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Re: 1931 engine blocks
The most significant changes in 1931 blocks are the addition of an oil feed hole to the rear camshaft bearing, and stiffening of the rear wall.
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04-15-2020, 09:20 AM | #5 |
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Re: 1931 engine blocks
The engine production at Ford was always in a state of flux. They even made improvements to the later B blocks during its production. At some point they stopped casting the blocks at the Rouge plant and started farming the casting process out. These were the Diamond blocks that folks mention now and then. Ford still assembled engines for replacements and for industrial applications long after the model B replaced the model A.
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04-15-2020, 11:44 AM | #6 |
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Re: 1931 engine blocks
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04-15-2020, 12:01 PM | #7 |
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Re: 1931 engine blocks
I used Plucks study for a re stamped block and it placed it between March and September 1930.
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04-15-2020, 08:46 PM | #8 |
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Re: 1931 engine blocks
That is to be expected as weaknesses showed themselves through the sometimes harsh treatment handed out by people. Gradual, usually unannounced improvement during the life of any car, even today, is normal. I was always told to never buy the first of a new model if I intended keeping it for that reason. It is waaay better to buy the last of a model.
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04-15-2020, 11:52 PM | #9 | |
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Re: 1931 engine blocks
Quote:
Mines a late 31 BTW |
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