You're only talking a difference of .075" diameter OR .037" closer to the rocker. That's not likely to cause you any grief. My Harland Sharps clear my 1.55 springs by a good 1/8" (big block). And they will only come close when the valve is closed so "if" they needed clearancing the absolute most you'd have to take off would be .037 (or less). Personally I don't think it'll be an issue.