Well the post says it all,I picked these up last Sun night.The guy had them listed as 426 aluminum valve covers.I explained that they were 331 354 392 Chrysler and he said he didn't know for sure but knew they were Hemi.But as I was driving home I kept thinking they were way to light to be aluminum so sure enough the turn out to be magnesium.Now I need to find two vintage breathers for them seeing someone drilled them out back in the day.The speed shop thats engraved on them was or is a local shop and pretty well known back in the day.Theres still cool stuff out there.
Joe