Valve lash adjustment

There is no bolt (usually) they just pressed them on but there are threads, hey it saved .50 for every slant!
slants are lo-comp, you can turn the motor by grabbing the belts. If you cant do that, remove the plugs and try again. If you got weak valve springs, 340's drop right in! Remember to do them hot. .020 on a cold exhaust is not going to be .020 hot (spec)