Hi, I probably already know the answer to this but I'm wondering what others have to say. My rocker arm assemblies for my 426 hemi are drilled out for 1/2" head bolts. They are not the assemblies that were on the engine the last time it ran. My block is still the standard 7/16". First off, will these work with 7/16" head bolts and maintain proper oil pressure? If not, does anybody know of a crafty fix to try before I search for four oiler rocker stands? thanks in advance, Rob

I want to add that I have a CNC and a few endmils at my disposal so I could machine a bushing for each stand - but I'm hoping somebody has used this combo with success first.