"I'd be happy to post any changes, just post to this thread and I'll fix it up."
Well, the place to start is decide if there are three or four generations of stovebolt engines.
Then, decide if the 4th generation is still considered a close enough relation to the earlier three to be part of the family.
Correctly introduce the 235 in 1941.
Then, separate third generation car engines from truck engines. And, correctly introduce and describe the truck 261.
Finally, maybe include a section on Canadian variants.
First Generation
Type: straight-6
Production: 1929 - 1936
1937
The next-generation Chevrolet straight-6 was introduced in 1937 and phased out in 1953. Both were also shared with Chevrolet's trucks.
Missing: 1953/1954 - generation 3 - high pressure oil system
Generation 3
Chevrolet's third-generation Straight-6 was introduced in 1962
Th family relationship/characteristics are a stretch after 1962: 6 cylinders and a carburetor are about it. The significant differences were: 7 main bearings, longer blocks, lighter weights, and almost no interchangeable parts. Hardly related to the original Cast-Iron Wonder.