bolting on the intake

ok so i've got a 69 302h.o. that i just had the works done to including port and polish... and i'm bolting up my new rpm air gap manifold... using the bolts that i used last time for putting my intake on.... one is too short and just will not grab the threads in the head... that right there is odd... but anyways... so like most people would do... i go thru my boxes of bolts and find one about an 8th of an inch longer, its got grade8 markings on top.... i'm putting it in and at 24lbs of torque... it snaps off inside.... any tricks to getting that out... prefferably without removing the intake manifold??

If it's bottomed out in the hole, you're going to have to go the EZ-Out route. Just realize, the ezout is smaller in diameter than the bolt that broke off at 24 ft lbs, so it will be very close to breaking off as you loosen that bolt.

Is the head Al or Cast? If Al is it KEENSERTED or HELICOILED?

Incremental approach is best if done properly. Start with an EZ-out but be careful to drill the hole in the center of the bolt in case you have to drill it out completely and re-tap.

Good Luck, Kitz

its cast, and its helicoiled... and i'm pretty pissed off at the shop that did my heads now... cause the helicoils all look f***ed up to a large extent.... now i gotta pull my motor again to take the heads off and pay someone else to do it right...