Tools & Fabrication - GEN IV valley cover?

does anybody know the grade of the aluminium used to make the valley cover? or what filler rod should be used when TIG welding a hole closed. im asking this because i want to shave the PVC port/square block off and fill the small hole in, also i plan on polishing the cover when done.

does anybody know the grade of the aluminium used to make the valley cover? or what filler rod should be used when TIG welding a hole closed. im asking this because i want to shave the PVC port/square block off and fill the small hole in, also i plan on polishing the cover when done.

I'm willing to venture that it is NOT a 7000 series aluminum. I say that because if it is, it won't matter because you can't weld it.

If it is something else, (which is most likely) you can weld it with a 4043 rod.

I'm willing to venture that it is NOT a 7000 series aluminum. I say that because if it is, it won't matter because you can't weld it.

If it is something else, (which is most likely) you can weld it with a 4043 rod.

ok thanks