My father bought a new '89 Dakota short bed V-6 5-speed when I was 16 years old. I had a '67 Barracuda with a '68 Formula S 340 at the same time. As I grew older I stupidly traded the Barracuda for a Shelby Z Daytona Turbo! But I did swap the 340 out for a 76 360 before I let it go... Anyhow 13 years and 175,000 miles later we pulled the worn out V-6 from the Dakota. Bored and rebuilt the 340,(X heads and all!). Bought almost everything we needed from Mancini Racing to complete the install. Actually I couldnt believe how easy it all went together. And I bolted it to the stock '89 5-speed tranny! The alt. bracket from the V-6 bolted to the 340, along with the stock radiator, although I had to put a electric fan on front side of radiator due to lack of clearance for clutch fan on back. I made a solid state ignition system from mid 70's style Mopar parts you can get from any parts store. The '89 Shelby Dakota had a 318, the 340 block is the same size. So you can use the stock specs for that truck to compare to yours.

 

wow dude thats pretty intense... can you post up any pictures?