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ONLY 15LBS-17 LBS OF TORQUE!!!!
Usually stainless in aluminium is a huge no no, but ARP rolls their threads etc and with anit seize galling is a non issue. If you run down to the local hardward I would not recommend just getting stainless bolts, more than likely it will gall one of the holes, just get carbon steel.
The proper way to fix your head is with a heli coil, the question is if the hole alows for the larger drill bit for the heli coil threads. if not you just have to grind out but ensure you cover everything to prevent aluminium from getting in your engine
You might luck out with the longer bolts and just use the good threads left, obviosly I would torque that one last and only to 15 lbs
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