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Old 01-20-2013, 09:06 AM
65MalibuSS's Avatar
65MalibuSS 65MalibuSS is offline
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Question SBC engine codes. What is it?

What size is this engine and where did it come from? I asked this question on another site and no one came up with a definitive answer.

Casting code


Casting date code


Stamp code
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Old 01-20-2013, 12:47 PM
carpoor carpoor is offline
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By the casting #, it's a 283. The date code appears to be October 7th, 1964. (K = 10th month, 7 = 7th day, 4 = 1964)

Here's where things get weird, the XF code stamped on the pad references to a 1969 350 2bbl, 255HP, with a powerglide. The other characters don't follow any traditional GM pattern, other than the F at the beginning.
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Old 01-20-2013, 02:26 PM
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65MalibuSS 65MalibuSS is offline
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I'm looking at this way .... It's unlikely that someone would fake this casting # and date but it is possible that they would change the stamping # (why...?). So this does seem to be a 283 engine made in 1964. Thanx for tryin!
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