[magnuman]

Yes, bolt on and just make sure the intake, actually all, of the valve seats are secure before you install them. What happened to your current heads?

 

[magnuman]

I am sure you're familiar with the dropped valve seat issue on the 05-06 and some 07 Hemi's. That's why I recommend you have all of the valve seats checked, especially the intakes, which are the most common ones to drop. If one or more were to drop, you'd have a big mess on your hands. IMO, better to spend a little more now rather than a lot more later.