They can be welded up, nickel rod and heat the mani to about 500* first, then have the gasket flange flattened on a belt sander to remove some of the stresses. It also helps to cut the flange between the ports. This is an old trick on the 2.6 to keep it from pulling out the back stud, but it works on the 3.0, too.

I've only had one nipponese mani crack, on a 2.6T with uncut webs. Cracked right under the turbo flange, on the bottom.

Ditto all Kevin said...


Not responsible for advice not taken...