Header Bow Dimensions

[Twincam]

I am repairing the header bow on my 82 Spider and need to know the spacing for the mounting arms. I estimated 41 1/4" outside to outside arms, but would like to make sure that is correct before getting it welded. Anyone know the measurement?

[davidbruce]

My 80 measures 41-7/8" outside to outside.

[Twincam]

Thanks for the reply.