Perma-Loc Rocker nuts and Bronco Script Valve covers

[spray1963]

Has any one used the ARP Perma-Loc racker arm nuts with Bronco Script valve covers. I do not have roller rockers but want to stop the nuts from backing off every few months. Will these fit under the Bronco Script valve covers?

Thanks,
Scott

 

[ManTruck]

Scott I did the install some time back but I can't remember if they were ARP. But same design. I had zero problem on the clearance on the Windsor heads. 1969 date code old school heads.