Before you try to remove the pistons etc., be sure to soak the whole engine in Rust Ripper or a similar product to remove as much rust as possible. This will greatly aid in getting things apart. Once the rust is gone, the engine can be treated with Break Free or a similar good penetrating oil, or soaked in a bath of diesel oil. Doing the above will help prevent micro fractures in the cylinder walls from seized pistons and rings. Lifters are also likely to be seized in their bores, so take care in removing them as well.
Before you try to remove the pistons etc., be sure to soak the whole engine in Rust Ripper or a similar product to remove as much rust as possible. This will greatly aid in getting things apart. Once the rust is gone, the engine can be treated with Break Free or a similar good penetrating oil, or soaked in a bath of diesel oil. Doing the above will help prevent micro fractures in the cylinder walls from seized pistons and rings. Lifters are also likely to be seized in their bores, so take care in removing them as well.
Got any pics of the top side and interior you can share?
I dig those early 80s 5-spoke wheels.
I had the 10-spoke variety on my 68 for a number of years.