Re: 20's Packard Engine Identification - newbie/advice

Posted by Owen_Dyneto On 2019/2/18 18:45:55

Interesting question.

I'm not particularly knowledgeable of the 6th Series Speedsters (there aren't many who are) and have sent your photo to someone who is, we'll see what he has to say. In the meantime, certainly the motor number suggests a 626 Speedster motor is possible. If you'll indulge me a few questions which may or may not be relevant, are the spark plugs 7/8" or 18mm threads? Do you know the part number of the camshaft? If the motor is still associated with its original differential, what's the ratio?