did not want to hijack the other thread so here goes.
I have a minivan that has a product history of manifolds warping and breaking the exhaust studs off in the head and thereby causing a leak. Have to pull engine out to get to all the broken bits because I could not remove a cam cover due to more rusted bolts. I have Tigged all the bolts out 6-7 of them on both heads. Question is after I mill the manifolds back to flat and install new studs, could the manifolds warp again necessating another repair? 4 bolts missing on one head with only 2 bolts holding head t engine. Got 135,000 out of it so far. Thinking about going to use Aircraft studs to gain strength. Does that sound OK? What do you think?
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