Speedmaster Aluminum Heads

There are two different BB Mopar heads from SM.
One is the copy of an RPM head(and is the same casting as the Sidewinder head), and the other is a copy of the first gen of the Victor head.
The RPM copy head from SM seems like it was rarely available through them much in the last year or so.

The Ede, Stealth, SM heads all have their pluses and minuses.