I was wondering about that. I thought that Edelbrock and speedmaster had a magnum based aluminum head on the market.besides the LA ones.
I know that the MP R/T heads are as common as hens teeth.
I'm actually still hoping that the set of NOS Mopar magnum heads that I saw a few months ago, show up on CL again. But exploring all options.
I know that if I can use those replacement LA flat top pistons that the compression would be higher than stock, and was "considering" a set of aluminum ones as I know that aluminum heads can support more CR without detonation than cast iron ones can.