Inliners International Forums General Discussion Engines Casting number question, I apologize up front :)

I mentioned the fact that a two character serial number would narrow it down to before 1970...

I mentioned what I found for CA because it just goes to show that Chevy did reuse serial numbers....

I asked for the casting date because that would help narrow it down, since CA is used more than once...

I104 would suggest Sept. 10 1964, as mentioned. Considering the late date, it would actually be a 1965 model year engine. Remember,casting dates are by calendar year not model year...

Looking at my Hollander interchange manual, CA corresponds to a 1965 Chevelle 230 with manual tranny. You said the pistons are flat tops. Sounds like a 230 then. If that's not good enough of an answer, then you will need to pull the pan and check the casting number on the crankshaft...