1.6 ratio or keep the 1.5 on mild stroker build.

You can likely bolt them on and run them without issue. But, they will change the geometry (not saying it was good with the 1.5s but the stock style paddle rockers sweep differently than say a roller tip 1.6) and everything should be checked again. The only real interference you might see with more lift is coil bind or retainer to guide clearance. Neither of which is very likely on aftermarket heads, but worth checking.