I found a standard dimension, original 455 crankshaft 25 miles from my house! I posted a wanted listing on the Performance Years site and someone just over the border in PA answered. It is a 1970 nodular iron casting and was just as rusty as the block I found last week. [img]<<GRAEMLIN_URL>>/grin.gif[/img]
So I bought four gallons of Evapo-Rust from advanceautoparts (using their $25 off $70 purchase coupon) and made a makeshift bathtub from a crankshaft box and heavy duty layers of plastic sheeting. If you're wondering, I also put a few beer bottles in to raise the liquid level up to completely cover the crank.
The stuff works amazingly well in the hot sun. Within seconds the rust disappeared. I let it soak for about an hour, turning it and wiping the journals every 10 minutes or so, to get the residue off so the liquid could work faster.
Here's the final result after drying it off and spraying it with oil.