Re: Engine and Head Numbers

Posted by Packard Don On 2018/8/22 10:50:04

On my Packard / IMPERIAL page's classifieds (link below) is a 1941 110 head with photos that show it beside a 1940 head. Since 1941 was the first year of Electro-Matic clutch, the main difference was in the additional cast bosses on the driver side where the EM valve unit attached and these are visible in the photo. In the case of mine, they are undrilled as it came from a non-EM car. On yours due to the date, as pointed out, it is appropriate for your car but there is no way to know if it's the one that was on it when new.

I'm not currently at me shop where my parts are so can't check to be sure, but I believe that there was a casting date on the transmission too. Keep in mind that Packard didn't use "matching numbers" as such so it's not really all that important that all these things match. It's not uncommon to find later transmission installed and generally no one would ever notice the difference.