Stuck 440, Need Help !!!

I helped a couple friends rip apart two very nasty 440's that had a ton of rust in some of the bores, a real pain. We used the PB blaster as mentioned above and soaked the crap out the bores, make sure to wet the wrist pins as well. Have you pulled the bearing caps off to see what they look like ?

Once you are ready, remove the pistons that are close to TDC, or at least those you can get the rod nuts off of. Use a stout piece of oak about 1x1 or 1x2 - foot or two long and beat the pistons out one at a time by pounding on the wrist pin areas of the underside of the pistons. As you remove the pistons the crank should begin to be able to move a little, affording you some - if minimal wiggle room to get at the other rod nuts.

We used a file to scrape off the rust from the really nasty cylinders. If the wood gives up the ghost, then use a 3/4 " 2 foot long piece of steel water or gas pipe and a bigger hammer. Keep in mind you want to salvage the block and the crank. The rods can be replaced or reconditioned if you dont end up resorting to the pipe vs the wood method. The pipe will likely mess the rods up while beating on the pistons.

The block can be sleeved if the rust pits are too deep to allow clean up thru normal boring operations.

Have fun pounding !