Lifters

the Jeeps as I mentioned (4.0 inline) used flat tappets til the end of that engine. (around 06 as I remember) the last one I was into was an '02 and it was still that way.
at the moment I have a fresh /6 on a stand going into my 85 D150 (solids) and the original 318 in my 78 Fury that only has 55k miles on from new..... Im not swapping engines just to get roller lifters.