A little off the original topic, but these 90s Nissan truck engines are pretty darn reliable and not bad to work on. My SIL recenty had an engine failure due to a broken timing chain tensioner at 220K miles. Timing chain failure (unlike belted engines) is pretty rare. Since this is an interference engine the chain "drop" resulted in all 8 intake valves being bent.
He (a novice mechanic) was able to buy new valves, lapped them in, replaced both upper and lower chains, new valve stem seals, new tensioner, new gasket set, and replaced the water pump while he had it apart. I believe his cost for parts was around $500.
What impressed me was how good this engine looked on the inside. Very little carbon buildup. Cylinders still had hone marks and no ridges at the top. Pretty amazing for 220K miles. After assembly compression was 165lbs. on all cylinders. I expect to see another 200K from this truck with no problems.