So I was changing out my spark plugs and after getting the manifold back on and torquing it down ( to what I was told is the right torque - 9ft lbs or 150in lbs (which was incorrect) I ended up snapping the first head bolt in sequence. Now my question is how do you remove head bolts from the plenum manifold ? I know how I’m supposed to remove the snapped part inside the intake but the plenum intake manifold bolts don’t come out. So how can I remove the one?
From the Haynes manual (2007 Chrysler 300) it says 89in lbs for proper torque

Cheers. Ps should I be replacing the other ones ?

you broke a bolt in the lower intake or the head? Cuz i see no reason to remove the lower part if your plan was to change the plugs

No, the 7 bolts from the plenum intake manifold. One of those I snapped. See pic below of what I mean, the 7 bolts that tie this down. And the 7 bolts stay within the intake manifold which is what I’m asking how to get it out and replace it with the new one.



This post was edited by T9000 on Jan 30 2022 08:36pm

Pretty sure they come with the intake lol

u can’t remove them than? Pretty sure you can replace the bolts just need to know exactly how to get it out of the intake 🤔

Pretty sure youd have to remove the sleeve which the bolt goes in
gl with that without remolishing the intake haha

sorry cant help you with that one since it never happened to me
We usually swap intakes and the bolt comes with

it's probably just threaded through the plastic. pry it up til it stops going up and start loosening and see how it goes.

can confirm , this is how to remove them.