1970 K5 Project...or "Am I in over my head?"

[just_ridin]

Hey all...after doing a few builds and thinking my crew almost has a clue about how to work with these magnificent beasts, I came upon a unicorn...a '70 K5.

When the add said "this rust is not for the feint of heart" I didn't blink an eye...we've cut and patched floor pans, door bottoms and skins, fenders, used torches to knock out and straighten bedside tears...we got this!

What I bought is someone's cruel joke of a K5 that was slammed and converted to a BBC drag truck (ugh). now a 2wd with Mickey Thompsons, the engine, tranny, and transfer case are gone...2WD front end...Genuine Flintstone floor pans...ugh..the list goes on and on. I think I paid for a frame, top, VIN plate and title...the rest we're going to have to re-do.

My thinking is to take this thing back to factory condition as much as possible, but I'm not sure how to tell which V8 was used (I think both 307's and 350's were used..how do I tell which one?). I've got an OPR code of 4M20AL, so I know I need to find a Granny 4...but how to tell which transfer case was used, or does that matter?

I'll see if I can get a build thread started here...will appreciate any input at all I can get....I know there're going to be many, many questions...I love these things and am learning more and more about them, but still soooo much to know, and greatly appreciate all the help.