L82 Intake manifold heat shield

[L82GEM]

Hello to all. I am looking for a aluminum intake manifold heat shield to replace the missing one from my 79 L-82. I am wondering if one from a cast iron manifold would work, but not sure. I can't tell you how many times I have kicked them aside walking through recycling yards, now I need one. Thanks to all who read and respond. Dale W.