Think the thing with a handle attached to oil pump is oil filter remember seeing a Cono or Kumo not sure of spelling used on older cars oil passed thru set of thin steel discs to clean oil you turned the T handles which turned plates which were wiped by similar set inside the housing this type of filter was used on oil systems on late 30 early 40 cars remember seeing picture of same in old motors manual that my fatheer had also he had one of those filters on a Studebaker he had after WW2 can't remember the spelling but do remember helping take filter apart and cleaningn Normal cleaning only required a few turns of the T handle on top of filter. Will look for manual and pictures later

My feeling on old cars not just Packards is if you fix or repair or do something yourself no matter how small you have the satisfaction and inner knowledge that you did it with your hands. Its not same as writing a check . Doing a repair or restoration your self is more fun and I think more rewarding than writing a check . Making out a check proves you have more money doing any job yourself and seeing the results doesn't have a price its self satisfaction which can't be purchased with money. The above is my feeling but writting checks is not much of a hobby. Paying to have something done you can't do your self like chrome plating is different but the more hands on the more enjoyment plus the memory and the right to brag about what you did and how you did it thats what old cars are about as far as I'm concerned

Did a little checking on a RR website after looking it over pretty sure RR V8 and Packard V8 not similar except for having 8 cylinders in a V configuration. THa RR has Alumionum block with wet liners gear driven camshaft oil pump driven from a gear of the front of crank also has studs that hold on the head and main bearing caps. THe site is very complete and takes a lot of time to look over
http://www.rroc.org.au/wiki/index.php?title=Tee-One_Topics

The Michelangelo effect you speak of must be in you as the picture of the feathers are displayed on a Packard catalog nice touch on background. I look forward to your updates and pictures. You are making progress : hands on, dirt on, and paint on, part will be long remembered memory and point of pride as you did it yourself.

http://www.morbark.com/Service/belttorque.pdf
If you look at the bottom of the site in the notes it says to reduce values in alloy by 30% and increase the depth of engagement

Mal from the look of your last picture you are getting better at keeping the dirt off your face and on the floor. When you get down to the end you will be able to spend the entire day under the car without getting dirt on you. But the painting may be a new learning curve. Also appears that you are working up a sweat doing all this work. All kiding aside your progress reports are great reading. Keep them coming

I see that your granddaughter car is center steer rather than right or left hand drive I assume that makes her a center of the road type. Spending time with your grandchildren is a very good reason to not be working under your project family comes first.

When you have your 55-56 Service Manual out go to section IX Page 6 fig.13 titled oiling system it does not show a full flow oil system. At least my copy does not show a full flow filter in the accepted sense of the word.

Feb is a great month for Happy Birthday ask the man who has one

Its my feeling that if you can install the dual master cylinder on any old car that it should be done for saftey reasons and for the car well being. If the brakes fail another old car may well be damaged at the least and the possibilty of person being hurt is reason enough in to change to dual master cylinder.
In your case of a 66 Chevelle all you need is to get a 67 master cylinder. You could adapt the lines or replace all the steel lines with new ones from a 67 which are easy to obtain pre formed ready made. The lines on your car if 10 years old could be replaced lines can rust in that time. I would consider the change to be saftey issue and if you change the master cylinder and lines you will have the peace of mind knowing the system is new and as safe as you can make it.