Turbo valve cover modification for installation in a 6, Anybody done it? Options

[bdstone914]

I have a customer who wants to add billet lower valve covers to a 6 conversion. He had one machine shop botch the first pair. Anybody done this and know how much material needs to be removed to clear the suspension point? I drawing showing the area to machined and the finished thickness would be ideal.

Please pm me if you can help

[raynekat]

Fins are NOT on the turbo covers for cooling.
They are there to add structural stiffness so the covers don't warp as easily as the earlier covers tended to do.

I think a bigger problem with any cover warping is that the owner doesn't change out the gaskets enough when there are leaks and instead tries to tighten the dickens out of the covers....that's what really warps them.

I would just remove enough material to get the turbo covers to clear the suspension ear as in post #7 and leave the rest of the rib material alone.

[porschetub]

Fins are NOT on the turbo covers for cooling.
They are there to add structural stiffness so the covers don't warp as easily as the earlier covers tended to do.

I think a bigger problem with any cover warping is that the owner doesn't change out the gaskets enough when there are leaks and instead tries to tighten the dickens out of the covers....that's what really warps them.

I would just remove enough material to get the turbo covers to clear the suspension ear as in post #7 and leave the rest of the rib material alone.

Read all the replies and most just chop them down over the full length,fair enough I'am now thinking it wouldn't make that much difference just don't see the need.
Really nothing could be as bad as old twisted magnesium ones ,I resurfaced mine and they still weep with the right gaskets,the alloy ones must be a big improvement fully machined of just clearanced on the one side as the set I have yet to fit.