5.2 and 5.9 heads, same casting.
Although there was a Dakota R/T vehicle it did not come with
Special heads.

Magnum R/T heads are an aftermarket Mopar Performance
Product, which were brought to market to replace stock heads for crate
Engines when the supply of new Chrysler (oe) heads ran out. They were never sold
On any production vehicle.
The exhaust ports are noticeably nicer than oe heads and they were available with
Both stock and 2.02/1.6 valve sizes. Bare and complete. As they waned in popularity Mopar replaced Them with eq heads but the ship had mostly sailed by then, and folks were buying eq products off eBay for the most part.