3/8 stud rockers on stock heads

[90mustang306]

anyone here have 3/8 stud rockers on stock heads??

if someone does could you tell me what you did..thanks

 

[VR93SVT]

why dont you use the other size.

 

[LEE93COBRA]

I think I just screwed mine in. Its been a long time since I used them on stock heads though