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[C1] 57 engine

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Old Dec 5, 2023 | 10:02 PM
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Default 57 engine

Just saw this on Facebook Marketplace. The valve covers do not look right, I would have guessed MOPAR. Or valve covers not attached? What do you think?
C Ya, JM Rock
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Old Dec 5, 2023 | 10:31 PM
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Definitely a chevy engine, it was attached to a Powerglide at one time.

The Mopar valve covers are just resting on top of it
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Old Dec 5, 2023 | 10:42 PM
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Not a '57 engine since the 3737739 was first used in 1958 and ran until 1964. Certainly not a Corvette intake with that small carb -- From '55 V8 on, all C1s came with a 4-barrel at minimum.
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Old Dec 5, 2023 | 11:15 PM
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Originally Posted by 67:72
Not a '57 engine since the 3737739 was first used in 1958 and ran until 1964. Certainly not a Corvette intake with that small carb -- From '55 V8 on, all C1s came with a 4-barrel at minimum.
Um, not quite.

The 739 casting was a mostly one year only block. (I believe some early '59s might have come with a 739 block.) It was the first SBC to have side motor mount bosses and the last SBC to have a rope seal at the rear main. It was superceded by the 519 block, which was the first to use the neoprene rear main seal.
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