1.6 hughes roller rockers

MRL Performance said
1.500" will touch if you dont shim the rocker shaft up on an Eddy head, at least they used to. They have redesigned them, so maybe you can fit a bigger spring in there.

o1heavy said
the 1.5 will hit even with the shims

Bummer, I guess I won't be going that route with my roller springs (1.54"). Thanks for the info.