I just got done having almost that exactly conversation with a coworker...For the money I'd have to put into these heads (about 300-400 dollars) plus the brackets, pulleys, and a new water pump, i could have a set of darts/motowns/vortechs and be done with it. I'd be able to pull a set of those heads out of the box and bolt them on. Thank you all for your advices. This is a good board and yet again, it has saved me from making a huge mistake.