Go to library and get a chiltons manual for your car.
In my 1965 Corvair, it is in the Front Hood (Cargo trunk), on the driver side by the windshield.
There are a lot of bolts on the engine and we don't know what bolts your talking about, there are different torque specs all over the engine, I would say that you should go to the library and get a chiltons repair manual for your car and it will tell you the specs your looking for.
I'm sure you can make them work.
look on the front door post on the drivers side.
if its a steel cylinder head its 75ft pond
I used to own a 1964 Covair spyder and it used 5 quarts of oil on a oil change. Brewski
You need to contact a Corvair Club for an answer from people who really know, based on experience with this engine. I would probably use 10w30 but you may need to use 10w40. I am not 100% sure on this engine.
The first generation ChevyVan was produced in 1964. The first van made by the company Chevrolet was the Chevrolet Greenbrier based on their Corvair model, known as the CorVan, in 1961.
The straight 6 cylinder is 170 cubic inches in a 1964 Ford Mustang
you need a chiltons repair manual from the library for 64 chevelles
60 ft/pounds