For the W5 lovers

Because mopars just happen to be the most expensive engine to build. I'm sure that there is a lot of R&D in the development of those cylinder heads.

Go find the equivalent GM or Ford head to the W5 and see what that costs. It’s the same.

When you could go buy junk yard parts and race the GM stuff was cheaper. When you step up to race parts the cost is very similar between all the brands.