Why yes, yes I have. The HO head, water jackets drilled, tapped plugged, milled, and valve job.

Crane torquer cam, Mopar Performance valve springs.

Clifford 4.0 intake for a carb, I am going to stick with a carb.
Block bored 0.040 over.

Stock 4.0 exhaust

I haven't put the distributor in yet, but I will use the 258 distributor with the Team Rush upgrade with the e core coil and the Summit CDI box.
I used the stock push rods, a Melling HO oil pump and when I retire is my plan to put the motor in. Or it might come sooner if the bigger carb and header( when I find the hearder) for the 258 that is in the Jeep doesn't do the job pulling the Polaris Ranger on longer trips.