Thread: Small block ID..I think it is an old Feulie!

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OK Buzz, your heads are 461's (1.94 intakes) which makes them '62-7 327 heads. So much for a complete "rare" engine. If you read the whole page from the link I posted that author thinks there's a good chance you've got some cracks. Well that's an opinion, a magnaflux test would prove or disprove.

You're probably expecting the block to be a '58 fuelie because of the CS at the end of the stamping. Could be. But be warned, Chevrolet reused codes for various engine designations. For example, a 250 ci six is also a CS code. So, you need to get the block casting number as Richard suggested and then go to Mortec. Be advised that the same 283 casting numbers were used from '58-64, but the fuelies were only 283 based until '61, so the casting date code would be necessary to prove value as well.

If you look around you can rent a bore mic.