no modifications necessary
That would be a small block.
i would use a Chevy 560 horse power big block engine with some nitrous and brand new intakes. and get a nice transmission
A cylinder is misfiring.
No. You would need to have the main journals turned down .200". Then it would fit.
Many. 348 would be a small block, whereas the 454 is a big block.
Everything
That would be a big block. If you are referring to the diesel engine, it is based on the Oldsmobile rocket block, and shares nothing with the engines usually referred to as big block or small block.
The 350 is the small block, and in 1986 it would be GM corporate blue.
no
It would never hold together.....
One of the valve covers.
Lack of lubrication.