Make sure your block is prepped for a stroker crank. My 400 is a 500 inch. The skirts on the piston go down low enough into the bore that the blocks need to be notched and the bore and hone need to go all the way through. There again I have the BME rods that are large. A good machine shop should know how to do these things.
Let me tell all you fine people one thing, a stock 440 is not a good block for over 650 HP. If you are going to run high horse power 440's get after market main caps, and get the block epoxied. They do not hold up to the Drag Racing stress. I have been racing for over 35 years they will fail you if going with high horse power. Use a 400 Block and stroke it! Or get a 440 race block from Kofels.A 71 400 block is the best I think. Don't waste your time with INDY Engines those guys are *** HOLES, B1 is the ticket. Chow for now