I have K1 rods in my 572, Eagle rods in my 422, Molnars in my 360, K1's in my 408, and 440source are going in my 512 engine that I am putting together right now. All are H beem rods with upgraded rod bolts. my last set of 440sorce rods made 275 8 seconds passes until I found a crack in my 440 block. I sold the whole assembly and it now has 2 Summers on the street. I personally would not buy the Eagle rods but I bought the whole 422 rotating assembly from a Friend.