Help with my first engine build (5.9 Magnum)

I found a local guy selling a set of 360 heads that had been upgraded already. Hughes valve springs, roller rockers, and some mild porting of the intake ports. He bought them new, raced with them a couple times (dirt track), and decided he wanted to upgrade to aluminum heads. My main reason for buying them was their new(ish) condition. No pitting on the valves or valve seats. So they will be just the ticket for my motor. I pulled all the valves to get a good look at the head and make sure there aren’t any cracks between the seats. Going to lightly lap the valves and then put the head back together.

View attachment 1715988048

View attachment 1715988051

View attachment 1715988052


And for of those that say, “They all crack”, yea…..