1.72 Roller Rockers June 06, 2020, 05:43:32 PM I don't mean to keep posting stupid topics and I didn't want to post another one, but I can't get a consensus on this. I'm installing Trick Flow 170s, and I bought a set of brand new Ford Racing 1.6 roller rockers. Unfortuneately, I was sent the 1.72 ratio rockers instead. Will this be alright on my stock cam without clearance issues? I don't want to open the box which is why I ask just in case they won't work. But if I got more lift and power, then great! Eventually, I would like to get a Trick Flow Stage 1 cam as well. Of course I'll check PTV when that time comes (a few years), but I would like to know now if they'd work so I don't have to buy another set in the future. These Ford Racing rockers are hard to find new, and I'd prefer these over others.