Greetings . . .

As I understand it all Chevy engines were painted gray until the full pressure oiled design appeared in '53. In that year the solid lifter 3-on-the-tree 235 cars had gray engines and the 235 power glide cars had blue engines. This was the first year for the so called Blue Flame six:


So a '51 235 would have been gray from the factory.

regards,
stock49


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