I realize that this is beating a dead horse and apologize for it, but...<br /><br />I just purchased a boat with the subject engine. I did so because the engine has about 160hrs and runs great...and because I had not read this forums many posts on the injector problems.<br /><br />From another post, I will be able to check for the pins in the head. I do not know if I have an upgraded version or not at this time.<br /><br />If I do have pins in the head, are there more than one type of upgrade i.e. 2001 heads vs. modified? How do I tell?<br /><br />Does the fact that the engine has high hours indicate that I may not have the injector problems known so well? <br /><br />Thanks for any help.<br />Allan