400/450 stroker....Cheap parts, lotta work.
So after we make our own rocker shaft hold down kits........
Which by the way we only make for ourselves. If you need something like it contact B3RE as they are better at it than us.
And we get the sweep across the valve tip looking respectable.............
We then have to get the roller tip centered over the valve.........
We machine the hold down so that the roller is centered over the tip with a .015 hard steel shim between the rocker body and the hold down..................
And then machine a spacer to go between the rockers with about .015" gap.....
Then bag each set so we know what cylinder head and cylinder it works with.