Look in the Factory Service Manual for how much to put in. There is no answer in how many inches between block etc.....Is this your first oil change ? Strange question...
Chrome dipsticks are universal, no specific application. You must calibrate it to your engine.
Does your dipstick tell you...
Seam sealer, expanding foam. What ever you want. It is just a weather sealer to keep the water out of the kick panel areas. Over the years the factory used different materials, but for the same purpose. Also just prime the area under the hinges, both body and door sides. The hinges should be...
Yes. Must be virgin Mopar. No prior work or repairs. No heavy rust. Lower Pin holes must be smaller than .040 . 66-76 A-body, 66-70 B-body and 70-73 E-body only.
Missing pins and springs don't matter as they are replaced during the rebuild.
Send good quality, close up pictures of the pin hole...
Just an FYI The Chrysler, Dodge and Desoto valve covers are different sizes and do not interchange. So your valve covers are only desirable for someone with a 331, 354 or 392 size engines that came in Chrysler branded cars. or Marine, Industrial Chrysler engines.
Don't go by colors. Green colored coolant might not be the same between manufacturers. There organic and non organic types.
Are you using any aluminum components in the cooling system, like aluminum radiator or cylinder heads ?
Antifreeze - Ethylene Glycol vs. Propylene Glycol...