View topic - DeSoto Engine and Chassis Photos

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PostPosted: Thu May 03, 2018 9:49 pm 
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Location: Ann Arbor, MI United States
The first photo of a DeSoto engine is from the 1929 Series K roadster in the Chrysler Museum. This photo was taken by Willem Weertman (source 2 in the bibliography). For those not familiar the DeSoto six was an all new 4-main bearing engine introduced on the DeSoto in 1928. It was built through 1936. It's distinctive feature is a deep skirted block- that is, the block extends below the centerline of crank giving extra support to the main bearings.

In 1928 Chrysler introduced high compression cylinder heads on many of their cars- the DeSoto included, to take advantage of the new premium high octane fuels that became available then. At that time standard compression heads were painted silver, and the optional heads were painted red. Red was the color used by Standard Oil to identify their "Red Crown" high octane fuel dispensing pumps. This DeSoto engine has a red cylinder head.


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1929 DeSoto Series K, Underhood.jpg
1929 DeSoto Series K, Underhood.jpg [ 340.05 KiB | Viewed 692 times ]

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Brent Jacobsen
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PostPosted: Thu May 03, 2018 9:56 pm 
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Joined: Mon Jun 29, 2015 5:19 pm
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Location: Ann Arbor, MI United States
This second DeSoto engine photo is of a 1937 engine in a chassis. 1937 was the year both Chrysler and Desoto replaced the DeSoto six with the all new "Long Block" six, sometimes called the "25 Inch Block" engine because the head surface measures 25 inches. This engine did not have the DeSoto six's deep-skirted block. This engine has the standard compression ratio "Silver Dome" cylinder head.

Note that this photo is from source #6 in the bibliography, and is from the collection of club president Les Pesavento. I hope Les and Dennis David don't sue me for copyright violation. Dennis' book has many great photos in it, and I urge all club members to buy it.


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1937 DeSoto S3 Chassis.jpg
1937 DeSoto S3 Chassis.jpg [ 1.03 MiB | Viewed 691 times ]

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Brent Jacobsen
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PostPosted: Thu May 03, 2018 10:00 pm 
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Joined: Mon Jun 29, 2015 5:19 pm
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Location: Ann Arbor, MI United States
The last DeSoto Engine photo is of a 1941 S8 chassis. This chassis too is sporting a "Silver Dome" engine. Willem Weertman in his book notes that from 1937 through 1942, only the Chrysler version of the "Long Block" six had a "red head" engine available.

This photo is from Chrysler's corporate archives researched by Don Butler for his 1978 book, source #5 in the bibliography.


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1941 DeSoto S8 Chassis.jpg
1941 DeSoto S8 Chassis.jpg [ 240.9 KiB | Viewed 690 times ]

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Brent Jacobsen
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