Drive In Collection: Blood Thirst + The Thirsty Dead Coming September 10th

Vinegar Syndrome has just listed another Drive-In Collection release with a September 10th release date; joining the already announced Death Force/Vampire Hookers is this double dose of Filipino terror:

Two blood drinking B-movies made by Americans in Manila!
Blood Thirst (1971)
After a series of brutal killings, an American investigator probes the violent goings on and discovers a horrifying secret.
Director: Newt Arnold
74 minutes / B&W / AR: 1.85:1
The Thirsty Dead (1974)
A sinister cult kidnaps beautiful women to use in their ghastly blood rites. Featuring Jennifer Billingsley and John Considine.
Director: Terry Becker
88 minutes / Color / AR: 1.85:1
Features Include:
+ Dual Layer DVD-9 | Region Free | 16:9 Anamorphic | 1.85:1 AR | MONO
+ 2k scan from 35mm archival elements

On a side note, what are the odds of two unrelated movies made in the Philippines having the word "thirst" in their titles?