Thread: 283 casting number

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Hi Denny,

Yes, this is the number stamped on the boss, passenger side, where it extends forward of the head. Steve's looked at it a number of times, and that's what he insists it is.

I vaguely remember that this stamping told what the engine was originally installed in. Thirty years or so ago, when I was learning how to do smog inspections, I had to look one up. The first few characters told what car it was for. It's been long enough I've forgotten what I know. But it isn't a casting number. It's the application ID that they stamped in.

And it definitely had front mounts on the engine. Don't know if it has the side mount holes, but the friend who has it is the local Chevy bigot, and he thinks it's a really early block. He's hoping for an early '57 - he says the engine's general features match pre-1959.

Thanks for the comments so far.