Thread: rusty block dilemma

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I have a bit of a dilemma. Im going to build a 383 stroker. I recently found a block i think (hope) may be perfect for what i want. It is a 1975 4 bolt 350 with the 010 at the end of the casting #. Ive been told this denotes a high nickel content which makes them stronger. My issue is its fairly rusty as expected. Nothing terrible but I want to get it magnafluxed. the guy I took it to told me he cant magnaflux it without it being cleaned up first. I plan to use Evapo Rust on it. Im not sure what its going to clean up at. Im hoping no more than 40 over but its already got some rust in the cylinders. My question is, can i get it bored and keep the machined surfaces from rusting over while i get my money squared away for the rest of the build. If so how? It may be a little while, but until I know what it will clean up at I wont know if the block will work for me.