Originally Posted by
CHAHONDA
my truck has a 7.4

Overrated P.O.S. unless it's got a crutch attached. (454's respond well to superchargers....)
Of course, a 440 isn't a great design, but then again, it's reputation says it was good enough comparatively!
The normal truck application of the 440 had a 7 quart oil pan. The normal car application was built with a 5 quart pan. However, The guy who told me that, also said he's never seen one in a van, though, it's very possible.
If you can see the oil pan, it's not hard to tell. The truck pan has a well over a foot deep, and the car pan is much more shallow.
Best of luck!