Okay here on this site there was an aritcle about a HF head swap to a 16v head swap. Okay while the site was down I ventured over to honda-tech.com and they said that the head swap wouldn't work! That the HF piston's don't have the valve recesses for 16 valves. That if I did swap heads that I would crush valves before I could get out of the driveway! Okay someone is mis-informed because one of you say this and the other says that! What WILL work and what WON"T because I almost started to do this the other day and if I had that shit happen I would have been really angry! Now I need some clarification on this before it's done. Because this just isn't a thread it was an article on this site. So some stupid ricer couldn't have posted the article it had to have been a moderator or a site coordinator! I need someone to either correct the error or explain to me how it WILL work. I thought that the bottom end of all D15's were basically the same. My car is a 90' HF. If that can help.