Rocker Arm threads

[ostldm01]

Somehow I managed to strip the rocker arm bolt holes when i was putting my engine back together. A few of the bolts tightened up too easily and it felt like they were going to strip as well. Does anybody have any suggestions as to how I should fix these stripped out bolt holes?

[cheapthrillz]

Aluminum Heads?

[indyjps]

enlarge them to BBC size, common on circle track cars.

Im assuming youre talking about screw in studs. if youre talking about the nuts on the rocker studs (pressed in studs) just have screw in studs tapped by a machine shop and install them.

[cheapthrillz]

If they are aluminum heads then you could look into the helicoils... not sure what the torque specs on those are though...

[ostldm01]

It is an aluminum head. So i'd have to drill out the holes and install helicoils?

[cheapthrillz]

When you know what thread size your holes are, you go to the parts store or Lowes or home depot and get the helicoil for that thread. It will tell you what size drill bit to get... go get the bit, drill out the old threads, run the provided tap down into the hole, then install the helicoil with the provided tool, then you thread the stud back down in there. Should probably ask around and see if you need to use threadlok or not.

[molyorange 77]

You should let a machine shop handle that task being they need to all be on the same angle or plane so geometry will stay correct. especially if you are using stud girdles and you ought to with aluminium heads anyway (just good cheap insurance)

[ostldm01]

thanks for the help!!!