No, not at all. I just wanted to note, that the LA head bolts and studs would not work, and possibly not the Magnum stuff either based on the email I got from Howard. If I wasn't so busy with other things, I'd do some investigative research. Bottom line is, they have hardware available, and it's ARP stuff, so it won't be an issue. Most guys building a nice motor would use ARP anyway. For those who wouldn't, maybe, just maybe, the Magnum stuff would work.