Aluminum Head advice needed

I had 440 Source heads on my 440, 75 block, stock with a .484 purple shaft. Bolted 'em on right out of the box and never had any issues. The engine itself was a time bomb that did go off and bent both valves in one cylinder. I haven't gotten around to checking out the damage, but if it's only seats and valves that need replacing, they will be on another 440 in the spring. Everyone says to go over them with a fine tooth comb, but if not for ultimate performance I don't think you should have to spend another $700 or whatever to make an already expensive piece work. After all, they should be ready to go for the price. Never hurts to check them though.