4.0L HO Jeep Engine Build

I've got two I believe "Econo" W-2's still sitting in the box that I bought back in like 1980, never been assembled. Along with some gosh, 12.5 to 1 pistons for my 340 (I had in my dragster) that have never been assembled. They must all be so outdated by now!

Golly, I hope sometime in the not to far future I have the funds to put both the 340 and the Hemi back together, get them installed in the Darts and play with them!