intake bolt broken in head/ tap broke too!

[cobracomander]

i was replacing stock 2bl intake on my 79 cobra 302 when an intake bolt broke in the back of the head, i drilled it out and was on last turn of the brand new craftsman tap, when the tap broke in the head #@&! this sucks... i may have to send the head out for service to remove it. i drilled into the tap to remove it but i broke 25 or so drill bits. any ideas on removing one of these? i drilled for prob 4hrs total on that head in one day. with only a small hole to show for it. frustating job. but i have had worse things happen. what type of bit or chislel can i use for this? or just send it to engine shop>

[Evil86lx]

I gave up after I killed several snap-on bits and easy outs. I sent the head off to a NAPA and they charged me 40 bucks to fix it.

kyle

[Mad Max]

almost easier to get a used head from the wreakers. They would have plenty of old 302's their using as boat ancors. You might get lucky and get a pair of e7 HO heads for a cheap upgrade.

[IWL BCNU]

Weld a nut to it and remove it.

[4eyed4life]

time to swap heads :)

[mikes82GT]

You can get broken tap removers from the tool truck or tool supply house. They have four fingers that stick into the fluted sides of the tap.

[cobracomander]

here are a few pics, got the head off, its real clean inside, may have had some work done before, there are copper spacers under the valve springs, i dont think thats factory? and it had fel-pro gaskets on the intake, they reused the bolts , i guess thats why it broke off in head. i got new stainless intake bolts, and ordered new head bolts. i am gonna detal the brackets and pulleys while apart. the saga continues....

[drivesa5]

A carbide drill will drill out a tap if you can get a good spot in the center for drilling (like a flat spot from an endmill or a spot from a center drill).