These motors are very reliable but very loud lol. They all tick real bad when cold as mileage increases. Most of them get bad piston slap too. On my parents it got noticeable around 180k. It now has over 210k and still runs fine. Just really loud on a cold new England morning. I would not hesitate to put on in my jeep. They really wake up with headers and a cam to. The noise is just something ya gotta live with. Kinda like the 2.5 where lifter tick is inevitable.
1979 CJ5 408 AMC dana 60/14b, T18, d300, PSC hydro assist
1948 Willys CJ2a LS 4.8/sm465 scout 44's