The Stovebolt Site Forums The Shop Area Engine Shop engine ser number

where can I find if the 216 in my 1951 chevy pickup is the
one that came with it

Thanks Dave Johnson

Should be stamped on a raised boss by the distributor. IF Oregon was an engine number state, the engine number will be the same as the VIN listed on the title IF it still has the original engine in it. If Oregon didn't use the engine number (most states did through '55) I don't know if there is a way to tell if it's the original engine. Someone who knows more than me will have to help there.

Dave,

You need to check the serial number (as Tiny describes above) and the block and head casting numbers to see if the engine might be the original. It is quite possible that a previous owner bought a new replacement short block (or complete engine) from Chevrolet and then stamped the original serial number on the distributor pad, as the replacement blocks came with blank pads. The PO could have purchased another 1951 216 block, or he (or she; we must be PC) may have upgraded to a full pressure 235 or 261. I know that has happened, as I did it back in 1958 when I replaced a low pressure 235 in a 1953 with a 261. Block casting and serial numbers locations and head casting number location

Over the years I have owned five 261 engines, and only one of them had a "correct" and consistent combination of serial number, block casting number, and head casting number. I am not sure that there is a way to "prove" that a car or truck still has the original engine if there is a gap in the knowledge of ownership and maintenance.

I hope that this reads ok, as I could not get the preview option to work.

Hoyt