Guys, you are assuming that there was a HEMI in this car, when I'd bet big that the car had an 18-spline Hemi four-speed transmission installed behind that original 383 or 413. First off, the HEMI in '65 was a race-engine only! Not a street car engine, and certainly NOT in a big Chrysler wagon! Even as a dealer install, I doubt very, very seriously that this car ever had a Hemi in it at any time in its' life!!! Let's think logically here...a full-sized wagon, with dual air conditioning, would be a weird thing with a four-speed alone. Does anyone really think for a moment that this car had a Hemi in it, at any point in its' life???