So the buddy that is going to help me install all my parts doesn't want me to install the 1.7 HS because it will cause uneven wear on the cam. He doesn't understand how something can work like that without wrecking the cam due to uneven wear after installing the new rockers. He has me lost now.

 

Is he thinking lifters instead of rockers? How does he think the cam will wear unevenly? There will be more pressure on the cam (magnums have roller lifters so no big deal) but the duration is the same.

 

ok problem partly solved he thought I was doing lifters. He still doesn't understand how you get so much power out of a .1 increase. What would you torch them at? That question is more me by the way lol

 

Oops... I wandered off with the editor window open and was beat to the punch. But the good part of the now superfluous post:

A 200lb spring (open spec for a 5.9l) on the end of a 1.6:1 rocker will put 320 pounds of force on the cam face. On the end of a 1.7:1 rocker it'll be 340 pounds -- a 6.3% increase. It's nothing to worry about.

 

Boy I hope it doesn't wreck my cam, i've only been running mine for about 50,000 miles. lol

I think you will be fine. If you are worried about it, call up John Mercedes at southeastperformance.com. He's helped engineer them for the 5.2 and 5.9, he can set your mind at ease.