325 hemi
I.e., 58 Dodge Coronet V8s got a 325 Dodge poly, 59 Dodge Coronet V8s got a 325/326 Plymouth poly. 59 was the first year for the A engine to be used in something other than a Plymouth. With 318 cubes from then on, the Plymouth poly became the corporate base V8.
I have a 277 Plymouth poly V8 in my 56 Plymouth Belvedere. Looks just like a 318.
No, that's a Dodge poly. Last year for that motor was 58. It was replaced by a one-year-only .040 over 318 Plymouth poly in 59. Had 325 or 326 cubes, depending on how you round off. But the motor for sale is not a Plymouth poly (i.e., 318 family). The two engine families both had scalloped valve covers, but they were a different pattern. So it's not a 59 motor. It's also not a Polara motor, as first year for Polara was 1960. 59 Dodge models were Coronet, Royal and Custom Royal. Last two had 361 or 383 big blocks.
I.e., 58 Dodge Coronet V8s got a 325 Dodge poly, 59 Dodge Coronet V8s got a 325/326 Plymouth poly. 59 was the first year for the A engine to be used in something other than a Plymouth. With 318 cubes from then on, the Plymouth poly became the corporate base V8.
I have a 277 Plymouth poly V8 in my 56 Plymouth Belvedere. Looks just like a 318.