I bought a non-running 400 complete for $200 and got a surprise. It had a forged crank which I didn't
know they put in 400's. The crank is for sale as I'm building a 470 stroker.
Was that a factory build or did someone rebuild it at some point? I've never heard of a stock 400 with a forged crank. I'm wondering if someone swapped in a forged 383 crank.