In reply to Cooter :
Just in case you need another data point to convince you, take a look at the Ford Modular Swap-ability thread posted 14 hours ago. Two whole responses to the OP questions with " I think answers ". If the question was about LS Swap-ability, the thread would be two or three pages deep already.
There are literally websites, books and entire companies that deal LS swap and interchangeability. I'll ask again, where's the build thread 
If I see one more 80 Chevy farm truck with a LS motor for sale at 8k + I'm going to start doing them !
If you plan to put a crown vic frame under the body and the crown vic already has a working drivetrain, don't berkeley with it. Leave the 4.6 in there and enjoy all the time and money benefit$ of having Ford engineers do the work for you. If you must, in the future you can grab a coyote out of a truck to upgrade.
Pete
In reply to scottdownsouth :
Right? Seems to me that a complete ls swap in a straight minimally rusty square body fetches 8-10k all day long
penultimeta said:In reply to scottdownsouth :
Right? Seems to me that a complete ls swap in a straight minimally rusty square body fetches 8-10k all day long
10k in pesos. Please show just ONE that sold for $8k, let alone all-day-long
nimblemotorsports said:10k in pesos. Please show just ONE that sold for $8k, let alone all-day-long
Maybe not in California, but in less eco-friendly locations it happens.
I went to Craigslist to link some that are for sale, but it looks like they're all sold in my area. This one will probably wind up close.
https://sacramento.craigslist.org/cto/d/antelope-1979-gmc-4x4/6907818284.html
Plenty of expensive chevy trucks. having an LS is not what makes them valuable, having an LS means at least they have been worked on,
not having one means they might not have been hacked up.
Honestly with the FItech plug and play option out there for the LS motors for under $800 it's really hard to justify not dropping in a cheap 5.3.
Get the hardware figured out: transmission, mounts, exhaexhaust, driveshaft, cooling, fuel pump and lines, etc. and slap the aftermarket computer and harness on it to fire it up and drive. If you want to sort through a stock ecu and fab up a custom harness and all the finishing bits that might get you the oem levels of performance and reliability vs the aftermarket unit you can, but it's drivable in the meantime and if you do you can resell the FItech setup for a couple hundred dollars loss. Cheap rental for the run time.
I used to recommend a msd box and carb manifold on the LS for all the same reasons, but it's about the same $ if you have to buy a carb and I'd like to think the aftermarket efi will run at least as well as the carb if not better.
Detroit Diesel is clearly the smartest option.
Really I don't think the kind of engine is going to affect the sale price as much as the truck itself. LS or 4.6 are both pretty good choices for a "inexpensive start every day v8 swap" as long as they aren't done by people like me. The actual issue is oddball trucks are generally looked at by, well, people like me. When most dudes hit up cl looking for trucks they just go looking for fords chevies and sometimes dodge.
Other swap ideas: Ford 5.4, Magnum v10 with a stick, or ford v10 like was mentioned earlier.
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