Rebuilding 440 after wiping a cam lobe

That really sucks. Sorry that happened to you sir.

I would tear it all down and start again, cleaning everything well enough to eat off of it. Pay special attention to the lifter bores. I would install whatever cam and lifters you will use by themselves in the bare block, then mark each lifter to make sure each one spins in its bore as you rotate the cam in the block.

Any new lifters I would take apart and clean the hell out of them. Make sure when you put two lifter faces against each other, or a flat surface, that they rock back and forth. Some have mentioned refacing a set of used oem lifters if you can find them as a way to avoid problems.

Best of luck sir.