Magnafluxing Heads - Where to Check?

[bulletpruf]

Fellas - I'm magnafluxing a pair of heads that I pulled off a 94 7.3 IDI-T. The pre-cups are cracked, of course, but what about the rest of the head? Are there any areas that I need to focus on besides just checking the surface of the chambers?

Thanks,

Scott

 

[DaveBen]

The valve seats and around the bolt holes for cracks.

 

[Booyah45828]

Precup cracking, so long as it doesn't extend past the fire ring, is okay. Any crack in the head is no good. Check the normal areas like between valves, valves to the pre cup chamber, and valves to bolt holes.

 

[bulletpruf]

Precup cracking, so long as it doesn't extend past the fire ring, is okay. Any crack in the head is no good. Check the normal areas like between valves, valves to the pre cup chamber, and valves to bolt holes.

All the pre-cups are cracked, a few past the fire ring. I have another set of heads from a low-mileage NA 7.3 that I need to remove and check as well. Hope these have nice pre-cups and no cracks. Thanks