Heavy Duty Magnum Heads

I was going to post the same question. But my opinion is it depends on what engine you are putting them on. They could be a really good head or just a bad investment. I was thinking of buying a set of bare ones and putting them on my 318 for a lil more performance but the valves are 1.92 and 1.60, a lil big for a 318 but would work reasonable well possibly.