Ok I have finally got around to putting a set of heads on that i bought a few years ago... Every thing was going great until i went to bolt the power steering pump and alternator back on and the freaking accessory bolt holes on the heads are a 5/8ths coarse thread and as yall know the alt and ps bolts are 7/16 coarse thread.... I can't be the only person that has ever run into this problem. What has anyone else done? Is there an adapter I can buy that threads in? I have sent an e-mail to the manufacturer to see what they say, but any help would be appreciated.