Trick flow rocker shaft studs

Yep, B3 kit. It needed a fair correction so he needed to supply & machine the hold downs as well. These are a fair bit thicker than the PRW hold downs.
The bolts supplied in the kit are actually shorter than the studs that came with the rockers.
The rocker shaft bolt holes in the head are pretty deep - that might have something to do with it.
The PRW studs are 2.625" long, looks like I need something around 2.9" long.

View attachment 1715869635


Why not use the bolts like MO suggested? There isn’t a reason to use studs there. I’d bolt that stuff down and get on with it.