If i remember correctly the 2040 is the same as an e cam from ford racing and if there is nothing going on you are fine.Have a 90 lx 5.0L. The guy told me when I bought it there was 1.7 rollers on it. I have a crane 2040 cam & all the info I can find (without actually checking it myself) says there will be ptv clearance issuses. So I'm going to put 1.6's back on it. Just wondering before I order them what is a good brand to get?? Also I believe on the stock heads they are pedestal mount are they not?? I have a buddy that will buy the 1.7's from me this is of course if the guy even had 1.7's on it. Thanks for your help.