Stripped out a head bolt hole in the block, now what?

[Micobe]

I am now replacing the head gaskets on a 5.0L 2012 engine, and I had significant difficulty with removing one specific head bolt. With a torque of around 10 nm applied to the wrench while just seating the head, the threads were immediately wrenched out. Has anybody encountered the need to fix a head bolt and can provide me with some guidance?

I am uncertain about the first steps to locate cutting pieces of such considerable length, much alone a threading tool that is sufficiently lengthy.

[Thenornpo]

You should consider using a helicoil to repair it. However, I lack expertise in this matter. During my employment at Mercedes, several technicians encountered this problem and resolved it by helicoiling the hole, successfully reassembling it without any complications.

[Micobe]

I just seen a somewhat scientific movie that examined the pull-out strength of many solutions. Among them, HeliCoil outperformed all but one, achieving a remarkable rating of over 7,500 psi. My non-turbocharged engine is incapable of reaching that figure, and I have no desire to remove the cylinder head again, at least during the time I expect to keep the vehicle, which may be between 50,000 and 100,000 miles. Currently, I am in need of an affordable option for a long reach threading tool, as well as a 2-inch long helicoil. I plan to contact Helicoil tomorrow.

[Bridgenix]

https://www.huhnsolutions.com/land-roverrange-rover

[Bridgenix]

These are the required items. Although I lack experience in this particular repair, using this method is a far more robust approach compared to attempting to use helicoils.

[Micobe]

I have chosen to go with the HeliCoil repair. However, I am now seeking information on the thread pitch of the M10 head bolt for a 2012 HSE 5.0L. If anybody has this knowledge, do share it.

[Bitxx]

The older 5.0L engines, up to serial numbers 11122107525, have M10x1.5 threads. Engines with serial numbers above that have M11x1.5 threads.