There were 3 horse powers for the 327 engine - 250, 300, 340 and the 400 had either 400 or 425 horse power. There should be a metal plate in the engine compartment or near the latch on the driver's door telling you about that car.
One can find listings for a used 1963 Chevy Impala online at eBay, Oodle, and Cars For Sale. One can also check with local Chevrolet dealers or local car dealers to see if there is one for sale locally.
http://www.finishlinewheels.com/CHEVY/IMPALA/
The Wiper reStore on eBay will restore your core for $199.95. Search for wiper motor restoration service.
Engineering
One can find parts for the 2014 Chevy Impala Sports Sedan at any Chevy car dealership. Chevy car dealerships are located all around the world. Look on their website to find the one closest to you.
Dean drives a 1967 Chevy Impala. Wanna find out more about supernatural? Go to http://www.supernatural-the-series.blogspot.com
To hook up a radio in a 2001 chevy impala do i need the charm or can it be direct wired
Purchase the latest edition of "Hemmings Motor News" from your local news stand. You will probably find some info in that magazine that will help you find what you are looking for.
Pueblo craigslist/autoparts.
You might be able to find a 1970's Chevy Impala at Oodle Marketplace. They contain several sales for the Impala depending on the mileage that you are looking for.
Yes Chevrolet is the maker of the famed Chevy Impala. One can find good deals on Chevy Impalas by checking the local papers for sale ads, or even going to a local Chevrolet dealer.
One can find a right sided rear view mirror for a 62 Chevy Impala on eBay where there are many such items available to buy. One can also get them from the Auto Parts Warehouse.