Broke two lower intake bolts off into the block....what to do?

BlueOvalStangGT · Jun 1, 2007

We were swapping intakes on my friends 160k+ mile LX and swapped the bolt closest to the thermostat housing and the bolt in the opposite corner (drivers side all the way back) off into the block. Whats the best way to get these out? Any suggestioins?

Modular2v · Jun 1, 2007

i just used a drill bit to get mine out....spun it into the broken bolt and then reversed the drill, it grabbed it and threaded it out

ronburgundy · Jun 1, 2007

time for those new heads he always wanted. lol.

bill302 · Jun 1, 2007

same thing happened to me when i reused the old bolts, if you have not installed new bolts go to the hardware store with an old bolt, match it up and ensure you get grade 8 bolts the old bolts i bought a set for about $4 the 0ld bolts were streched on mine and im sure they were on yours too.... but i removed mine by removing lower intake and there was just enough of the stud sticking up to use a pair of needle nose plyers to remove.. heres a link that might be helpful The Art of Extraction http://www.asashop.org/autoinc/may2003/techtotech.htm

1991vert · Jun 1, 2007

i, personally, would cry. but you could use an ez-out or pull the heads and bring them to a machine shop.

AnthonyR23 · Jun 1, 2007

Don't worry.. worst case scenario ... the will need to be drilled out and re-tapped probably with a larger screw or maybe the same size... not that big of a deal.. definitely a real pain though..

88mouse · Jun 1, 2007

get a left hand drill bit and drill them out will probably come out when drilling. shouldn't have to pull the heads.

BlueOvalStangGT · Jun 1, 2007

Got one out, broke 4 drill bits and an easy out butthe second one isnt so forgiving.

v8only · Jun 1, 2007

those are a bitch to get out.....and by the time you do, usually the threads in the head are fubar'd

fyi, on that front one nearest the thermostat, the hole in the head goes all the way through. go to the parts store (if the threads are stripped out in the head)

and pick up a longer bolt and a nut, and you can nut that intake bolt from the bottom of the head.

I'm not sure if that will work in the back of the head or not.....good chance it doesn't overhang the block.

if it doesn't, I wouldn't drill that bolt out, because the intake bolt hole goes down into the intake valley, and you'll get metal shavings in the intake valley which will destroy your motor.

If that's the case, pull the heads and fix/upgrade/replace as necessary.

Drinknbuddy · Jun 2, 2007

BlueOvalStangGT said:
Got one out, broke 4 drill bits and an easy out butthe second one isnt so forgiving.

did you look local in your area for a set of heads... after i did my head swap i just gave mine away.. they arent worth much... look around get a stock set cheap..maybe even free... if your lucky get a set of gt40s for a reasonable price.. either way... good luck.

Broke two lower intake bolts off into the block....what to do?

BlueOvalStangGT

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